Aging
Well: Surprising Guideposts to a Happier Life from the Landmark Harvard
Study of Adult Development
by George E. Vaillant, M.D.
THE STUDY
OF ADULT DEVELOPMENT
I enjoy talking with very old people. They
have gone be-fore us on a road by which we, too, may have to travel, and I
think we do well to learn from them what it is like.
-Socrates, in Plato's The Republic
Having entered the new millennium we are
bombarded with contradictory information about what it means to grow old.
News reports of people living longer than ever are juxtaposed to horror
stories of life in nursing homes and elders wishing for death. Inspiring
anecdotes of energetic 85-year-old marathon runners or CEOs or composers
who seem as young as ever are followed on the nightly news by stories on
the barrenness of life in gated retirement communities filled with
decrepit old people who feel superfluous. Will the longevity granted to us
by modern medicine be a curse or a blessing? How can we control our last
years? These are the questions for which we need answers.
"To know how to grow old is the
master-work of wisdom, and one of the most difficult chapters in the great
art of living"; so wrote Henri Amiel in 1874. More than a century
later, as more and more of us are destined to live into our eighties, his
challenge becomes more pressing than ever; and we need to decide from whom
to gain that knowledge. As we go through life, we meet octogenarians who
offer us rare role models for growing old. We meet vigorous, generative
great-grandparents, and we wonder how they became that way. We wonder
about their origins —about how their pasts might illuminate our own
futures. Foolproof answers, of course, are not possible. But if we are to
understand successful aging, we need to ask very old people about the road
they travel. The demographers have told us, have they not, that today's
young adults can expect to live past 80.If so, we all need models for how
to live from retirement to past 80— with joy.
Based on what is arguably the longest study
of aging in the world—the Study of Adult Development at Harvard
University —this book attempts to offer such models. The Study of Adult
Development consists of three separate cohorts of 824 individuals —all
selected as teenagers for different facets of mental and physical health
more than half a century ago and studied for their entire lives.
Therefore, this book will allow the reader to watch the adult life cycle,
in its entirety, unfold. It will provide a theoretical framework, as well
as data, for understanding how older people end up fulfilled or not.
The Study includes a Harvard Law School
graduate who died a derelict's death in a seedy residential hotel but also
men who became ambassadors and cabinet members, bestselling novelists, and
captains of industry. The Study includes brilliant women, from Lewis
Terman's study of gifted children, derailed from career paths by the
sexism of their era, but also women whose creativity flowered brilliantly
after age 65. The Study includes a number of men who began their lives as
Inner City high school dropouts but have gone on to achieve not mere
occupational distinction, but great success in living. What is special
about the Study of Adult Development is that it consists of grandparents
and great-grandparents who have been followed since adolescence. Old age
is like a minefield; if you see footprints leading to the other side, step
in them.
The Study of Adult Development offers
significant, reliable data that tell us what successful aging is and how
it can be achieved. Some may argue that the term successful aging
is an oxymoron. For is not aging inextricably associated with
loss, decline, and approaching death? Is not success inextricably
associated with gain, winning, and a zestful life? Perhaps, but the fact
is that the majority of older people, without brain disease, maintain a
sense of modest well-being until the final months before they die. Not
only are the old less depressed than the general population, but also a
majority of the elderly suffer little incapacitating illness until the
final one that kills them. No, successful aging is not an oxymoron.
Too often, however, the successful
great-grandparents whom you or I admire seem a freak of nature—like the
doughty Frenchwoman Jeanne Louise Calment, who went on smoking French
cigarettes until she was 122 years old. We imagine that there must be
something in their lives—something beyond our grasp—that explains
their remarkable vigor. We may fear that at 75 or 80 we will ask, "Is
this all there is?" But from everything I have learned from the Study
of Adult Development, those among the old-old who love life are not
exceptions—they are just healthy. As they surmount the inevitable crises
of aging, the Study members seem constantly to be reinventing their lives.
They surprise us even as they surprise themselves. In moments of sorrow,
loss, and defeat many still convince us that they find their lives
eminently worthwhile. They do not flinch from acknowledging how hard life
is, but they also never lose sight of why one might want to keep on living
it.
For example, over the years on the biennial
questionnaires sent to the Study members, there were certain questions
that produced unusually revealing answers. One such question was: What is
the most important thing that makes you want to get out of bed in the
morning? An 84-year-old Study member answered, "To live, to work, to
learn something that I didn't know yesterday —to enjoy the precious
moments with my wife."
To the same question a 78-year-old Study
member replied, "All the many plans for the day. I love life and all
I do. I love the out of doors....It is a joy to be alive and living with
my best friend." He was referring to his wife of fifty years with
whom his sex life was still "very satisfying."
Over the past thirty-five years I have
enjoyed the privilege of studying and interviewing these generous people
who agreed to participate in an experiment lasting for their entire adult
lives. Their outcomes often provided surprises that no one would have
guessed at the beginning.
Consider 70-year-old Anthony Pirelli.
Initially, he experienced most of the early perils that resiliency experts
tell us stand in the way of a successful life, including low socioeconomic
status, parental marital discord, a depressed mother, an uneducated
father, and seven siblings all crowded into a small tenement apartment.
These risk factors do, indeed, predict poor life adjustment in young
adulthood. Until the Study of Adult Development, no one had investigated
whether these same factors also doomed youth to a miserable old age. This
sixty-year follow-up revealed that Anthony Pirelli, predicted to fail in
young adulthood, has become a stunning success as an old man.
Both of Anthony Pirelli's Italian-born
parents could barely read English. As a semiskilled factory worker, his
father had worked steadily for Depression wages and then spent both his
spare income and his spare time drinking in disreputable neighborhood
bars. He was "mean" and would give "terrible beatings"
to Anthony's older brothers with "whatever was at hand." They
would come out of the cellar "screaming and bloody...bodily injury
meant nothing to him." Pirelli explained that during his early
childhood, such beatings were a nearly weekly occurrence for his brothers,
but that he and his sister had been spared.
When Pirelli was 3 years old, his mother
became stricken with manic-depressive illness. She was unable to exert
control over her children, and as a result they lost respect for her as a
disciplinarian. When together, Pirelli's parents fought continuously and
marital separations were frequent. When he was 13, his parents separated
permanently. Pirelli went to live with his father, who appeared to the
Study staff at the time to be unconcerned by his son's truancy.
In 1941 the first of five Study
interviewers to visit Anthony Pirelli's home was struck by the sparse
furnishing of his dilapidated fifth-story tenement flat without central
heating in "one of the poorest sections" of Boston's West End.
The Study investigator noted that it was "quite lacking in comfort
and is very unattractive. It shows the lack...of anyone who cares about
its appearance." As a boy Anthony Pirelli had seemed very different
from the extroverted, tanned tycoon who in 1998 was to show the fifth
Study interviewer his stunning high-rise apartment. The Study psychiatrist
described the 13-year-old Pirelli as:
Unaggressive, sensitive and
fearful of parental disapproval....This is a very mild appearing boy.
Wants to make a good impression. Does what he thinks is expected of him,
never is quite at ease. Plainly quite insecure in a social way. On the
whole, he is so conventional that it is very hard to get any true opinion
that is his own. He is quite inhibited in action, never joined in any
vigorous athletics but has numerous quiet hobbies of his own such as stamp
collecting and ship model building. We do get the impression that he is
quite sensitive and has aesthetic tastes.
In addition, the psychiatrist observed that
Pirelli was "emotionally stable...considerate of family
feelings...presents a perfect example of how children, reared under
miserable circumstances, survive through intelligence and character."
At the end of each school year, in order to
celebrate advancing to a new grade, the students were supposed to wear a
special outfit. Pirelli's parents could not afford these clothes so they
were supplied by the school. Sometimes his parents were challenged even to
put food on the table. Later, Pirelli wondered why his father hadn't done
anything to better himself. "I almost think he didn't want to. Why
didn't he?" Nor could Pirelli understand why his mother had not
learned English given that she had come to the United States as a young
girl. Years later his much older sister, Anna, explained to Pirelli that
she had raised him from infancy to 7 or 8. For unlike children in many
dysfunctional families, the eight Pirelli children banded together as a
unit and looked after one another. That made all the difference. At school
Pirelli was on the honor roll. He graduated from a trade high school, and
at 17 he enlisted in the air force. Just before he was released from the
service, Pirelli met his future wife at a USO dance; when he was 19, they
were married. He loved his in-laws. He explained that, unlike his own
home, "it was always fun at their house...they never had any real
problems."
After discharge from the air force, Pirelli
found work as a skilled laborer. His brother Vince became the most
important person in Pirelli's early adulthood. Vince would take him out to
lunch once a week to talk over Pirelli's plans for the future. It was
Vince who insisted that he go back to school.
The second interviewer was struck by the
bungalow that Pirelli at age 25 had bought under the GI bill and by
"its charming living room." The interviewer also noted that
Pirelli "has considerable drive, a very hard worker, mature." At
night Pirelli pursued a degree in accounting at Bentley School of
Accounting and Finance. He was a grateful student and reported that his
teachers had had a profound impact on him. In particular, he admired the
school's founder, Harry C. Bentley, who he believed had practically
invented modern accounting. He wanted to get good grades for Mr. Bentley,
who explained to him, "If you learn accounting, you can do
anything." Pirelli never forgot.
Five years later, the third interviewer was
struck by his "beautifully landscaped" split-level ranch house.
He also noted that Pirelli "has worked hard during this period...very
serious about providing for his sons a better environment than what he
had." Pirelli was "obviously devoted" to his two children.
In the early years of their marriage Pirelli's wife had worked to help out
financially. Later, she helped in his restaurant with interior decorating
and personnel problems. What Pirelli found most special about his wife was
her "ability to cope with difficult situations." When he and his
wife had problems, they would sit and "talk them out....She attacks
the problem right away." He was grateful for this since it helped
circumvent "my stubbornness." In their spare time both Pirelli
and his wife loved dancing together.
But then gratitude was one of Pirelli's
strong suits. By the age of 30 Pirelli was a certified public accountant
and had long since left his job as a skilled laborer. His clients trusted
him, and Pirelli's "love for business" and, more important, his
friendliness and sense of joy opened one door after another and helped
establish him in the business world.
When Pirelli was 47 his large suburban
house, swimming pool, tennis court—and the strength of his
marriage—impressed the fourth Study interviewer. "They are both
sympathetic toward the other." Pirelli seemed to "give thought
to each question before he answered it, and he was intelligently curious
about the Study." The interviewer wrote that Pirelli "was
appreciative when I said that we could send him some articles about the
outcome. He felt honored to be part of [the Study] and hoped that the
information he had given would prove to be of help to someone else."
Consistent with Reinhold Niebuhr's famous
Serenity Prayer, Pirelli had developed throughout his life the courage and
perseverance to change the things he could and the serenity to accept the
things that he could not. On the one hand, at 47, after discussing the
unexpected deaths of both his brother Vince and his closest friend,
Pirelli had remarked to the interviewer that life was "like a book
filled with many different chapters." He said that when one chapter
was finished, you must then go on to the next chapter—not a bad
prescription for growing old. On the other hand, continued Study follow-up
revealed that this once "unaggressive, sensitive, fearful" boy
with a trade school education had triumphed over a large international
conglomerate in a patent dispute. Pirelli could fight when he needed to.
At age 63 Pirelli suffered a serious heart
attack and retired. He realized that he was "getting old." He
turned his accounting business over to his children. By age 65 he had
turned almost all his many business interests over to trusted colleagues.
He wanted to enjoy his life and do things that he and his wife had always
hoped to do while their health was still good. Unlike many high achievers,
Pirelli always retained a clear sense of when to let go. He auctioned off
his beloved and very valuable stamp collection in order that others could
glean the same pleasure that he had enjoyed in adding rare stamps to his
collection.
At age 70 Anthony Pirelli met still a fifth
Study interviewer at the door of his high-rise Boston condominium. Pirelli
was dressed casually but neatly in a brightly colored tennis shirt and
fashionable navy tennis warm-up pants. He sported a full head of white
hair, and his face was still tan from a trip to his winter beachfront
house on the Gulf Coast of Florida. Despite recent coronary by-pass
surgery, he glowed with energy and good health. Pirelli loved being
retired.
Anthony Pirelli escorted the interviewer to
a picture window. The interviewer was impressed by spectacular views of
the Boston Public Garden and its swan boats, the gold-domed State House
and, in the distance, the Charles River. On the left stately trees divided
the grand town houses that march along Commonwealth Avenue. Pirelli,
however, drew the interviewer's attention to the right-hand side of the
view, to where the blighted tenement of his blighted childhood once
stood—the tenement whose barren interior had so depressed the first
interviewer.
Pirelli's narrative of his family had now
softened. His memory had transformed a painful childhood into a glass
half-full. Forgiveness, as well as gratitude, had become a strong suit.
Pirelli expressed compassion toward his mother. He explained that she was
"the kindest woman in the world....It drove her up the wall not being
able to communicate because she couldn't find out about how her kids were
doing in school. She felt embarrassed to come to school activities; and
she was bothered that she couldn't help with schoolwork. There was nothing
that she would not do for her children." He remembered his parents as
being committed to taking care of the children and not of themselves. He
marveled at how his mother was able to hold the family together for so
long and on so little money.
Pirelli seemed unconscious of his
increasing capacity for forgiveness over time. He believed that it was his
father, not himself, who had mellowed with age. He now recalled his father
as a "good family man" who made sure that his sons went to
school. His father took care of the garden, and "it was the best
garden in the neighborhood." He abused his older sons only because
"he was such a failure that he took it out on his kids." He
reiterated his father was not abusive to Pirelli or to his younger sister;
"We were never touched." He wondered why. Perhaps, he mused,
"Times were a little better when my sister and I came along."
After all, his older siblings were able to help out, and his father had
received a small promotion. He also wondered if "age itself was a
healing factor." As we shall see, forgiveness leads to successful
aging more often than does nursing old resentments.
Nevertheless, asked what effect he thought
his early experiences with his parents had upon his adult personality,
Anthony Pirelli replied that they had "a direct impact. I wanted to
be the opposite of my father. I didn't want to be an ordinary nothing. My
goal in life was to be ambitious." Only during his fifth interview
did Pirelli reveal that as a child not only his sister, Anna, but also a
financially successful uncle and aunt, invisible to the original
investigators, had also been important to him. They were "very
warm" and had treated Pirelli and his siblings
"wonderfully." At every age we tell our life story in a
different way. Clues to the future are present in any life history, but
the difficulty arises in distinguishing real clues from red herrings.
In contrast to many self-made men, Pirelli,
in retirement, was grateful for how well his successors continued to run
his businesses. Pirelli still spent one to two hours a week at his car
dealership (another of his many ventures), but he could rely on the good
management that he had there. When he went into the office, he explained,
he would "just get in the way." In other words, in old age he
knew enough not to take himself too seriously.
At age 70 when asked who has been his
closest friend over the last forty years, Pirelli shot back, "My
wife, without a doubt." Asked how they depended on each other, he
replied, "One would be lost without the other." They had just
celebrated their fiftieth anniversary. One of his children had earned a
Ph.D. in mathematics from Columbia University; the other had attended two
years of college.
Pirelli may have been ill,
considering his heart attack and open-heart surgery, but he did not feel
sick. He was as physically active as ever, and he continued to play
tennis. Asked what he missed about his work, Pirelli exulted, "I'm so
busy doing other things that I don't have time to miss work....Life is not
boring for me." Thus, at age 70 Pirelli enjoyed life as much as
anyone in the entire Study. The point of this story is not that yet
another poor son of immigrants became a rich man. The real lessons of
Pirelli's life are: he was not a prisoner of childhood; he gave to his
children what he could not have himself; he loved his wife for fifty
years; and he never felt sick, even when he was ill. Ultimately, he could
turn what he had built over to others with gratitude, not resentment. The
past often predicts but never determines our old age.
In the general population only a third of
adults alive at 60 will live past 80; but in the three Study of Adult
Development cohorts, 70 percent of college-educated members alive at 60
will be alive at 80—twice as many as expected. In other words, many
Study members are now enjoying the exceptional longevity and the prolonged
retirement that will become the rule for American children born in year
2000. Throughout this book, biographies of men and women—older than
Pirelli—will reveal ingredients essential to successful aging. For as
Study members, ten to twenty years older than I, trudge through the
minefields of life, I have for three decades now been studying and trying
to step in the footsteps they leave behind. In this book I invite readers
to join me. Pirelli's story tells us that if we look hard enough, we can
find hidden clues that help explain how a person ends up differently from
what we might expect.
Among the many significant findings to
emerge from the Study of Adult Development thus far are the following:
 |
It
is not the bad things that happen to us that doom us; it is the good
people who happen to us at any age that facilitate enjoyable old
age. |
 |
Healing
relationships are facilitated by a capacity for gratitude, for
forgiveness, and for taking people inside. (By this metaphor I mean
becoming eternally enriched by loving a particular person.) |
 |
A
good marriage at age 50 predicted positive aging at 80. But
surprisingly, low cholesterol levels at age 50 did not. |
 |
Alcohol
abuse—unrelated to unhappy childhood—consistently predicted
unsuccessful aging, in part because alcoholism damaged future social
supports. |
 |
Learning
to play and create after retirement and learning to gain younger
friends as we lose older ones add more to life's enjoyment than
retirement income. |
 |
Objective
good physical health was less important to successful aging than
subjective good health. By this I mean that it is all right to be
ill as long as you do not feel sick. |
In a world that seems ruled by genetic
predestination, we need hope that we still can change. The lives of the
Study members offer us guides. They allow us to anticipate and to shape
our own lives according to developmental rules. Benjamin Spock and the
researchers from whom he borrowed taught mothers to anticipate child
development and to understand what could be changed and what had to be
accepted. Similarly, this book tries to do the same for late adulthood.
Remember the words of Scrooge in Charles Dickens's A Christmas Carol:
"Men's courses will foreshadow certain ends, to which, if persevered
in, they must lead. But if the course be departed from, the ends will
change." The prospective nature of this book allows us to understand
facets of our lives which if departed from will allow our lives to change.
Positive Aging Defined: A First Pass
I shall return to these and other important findings of the Study in the
pages ahead. Along the way, I shall develop and expand my definition of
positive aging, but it's important to first explain a few key assumptions;
for commentators from social scientists to poets can't seem to agree on
whether aging is a good thing or not. Do we believe Robert Browning, who
invites us to "Grow old along with me! / The best is yet to be"?
If so, should not King Lear and Cordelia end their play by riding off into
some Walt Disney sunset? Indeed, that is how the play did end before
William Shakespeare adapted it to conform to his own pessimistic vision of
old age.
In support of Browning's view a
distinguished Study novelist wrote to us:
Contrary to all expectations, I
seem to grow happier as I grow older. I think that America has been sold
on the theory that youth is marvelous but old age is a terror. On the
contrary, it's taken me sixty years to learn how to live reasonably well,
to do my work and cope with my inadequacies.
For me youth was a woeful
time—sick parents, war, relative poverty, the miseries of learning a
profession, a mistake of a marriage, self-doubts, booze and blundering
around. Old age is knowing what I'm doing, the respect of others, a
relatively sane financial base, a loving wife and the realization that
what I can't beat I can endure.
All well and good, but in As You Like It
another distinguished author, William Shakespeare, asserts that old age
"Is second childishness and mere oblivion, / Sans teeth, sans eyes,
sans taste, sans everything." Shakespeare makes King Lear's senile
narcissism seem unbearable; and even when the bard was feeling kindly
about old age, he defined it in a sonnet as:
That time of year thou mayst in
me behold When yellow leaves, or none, or few, do hang Upon those boughs
which shake against the cold, Bare ruin'd choirs, where late the sweet
birds sang.
There can be no definitive answer to this
debate. Both sides are right. Old age can be both miserable and joyous. It
all depends on the facets we choose to examine. But one thing we do know
is that positive aging must reflect vital reaction to change, to disease,
and to conflict. Thus, perhaps there is a third way for us to view old
age—one that does not try to paint old age as either black or white. A
55-year-old Study poet underscored the dignity even in dying. He
rhetorically asked, "What's the difference between a guy who at his
final conscious moments before death has a nostalgic grin on his face, as
if to say, 'Boy, I sure squeezed that lemon' and another man who fights
for every last breath in an effort to turn time back to some nagging
unfinished business? Damned if I know, but I sure think it's worth
thinking about." He also addressed the difference between successful
and unsuccessful aging: "What is the difference? One, I guess you
would call 'the celebrant sense' or that wonderful hippie word, 'Wow!' I
think it's an important component in the whole adaptive process. Life
needs to be enjoyed!" And so whenever in this chapter I write
pedantically of successful aging—think joy. The heart speaks
with so much more vitality than the head.
Certainly, there will be many paths to
successful aging; and there will never be a right way to grow old. But the
goal is straightforward: How can we make the journey past three-score-and-
twenty one that we will be glad we made? That question will be the focus
of this book.
But we shall need to ask the very old to
point the way. Thus far, I have been quoting 50-year-olds.
Sixty-year-olds. When they wrote with such authority about old age,
Browning, Shakespeare, the Study novelist, and the Study poet were
middle-aged. What did they know? Even Anthony Pirelli is only seventy.
When he turned 80, the accomplished
American literary critic Malcolm Cowley had the same misgivings about the
chroniclers of old age. Ralph Waldo Emerson wrote his essay "Old
Age" at 57; Alex Comfort wrote A Good Age at 56; Simone de
Beauvoir wrote The Coming of Age at 60; and arguably the most
quoted of all, Cicero, wrote De Senectute at 62. In his splendid
book The View from Eighty, Cowley points out, "Those
self-appointed experts on old age knew the literature but not the
life." I agree.
Ideally, we would want to consult
individuals like the 122-year- old Madame Calment. What does life hold
when with the passage of time the elder becomes too frail to attend his
land conservation meeting or too hard of hearing to attend the lectures at
her genealogy society? Since Madame Calment is neither alive nor studied,
we may do well to listen to the 84-year-old Study member whose voice we
heard earlier in this chapter. Positive aging means to love, to work, to
learn something we did not know yesterday, and to enjoy the remaining
precious moments with loved ones.
The Study of Adult Development
At this point let me describe the Study in greater detail. The Study of
Adult Development is a rarity in medicine, for quite deliberately it set
out to study the lives of the well, not the sick. In so doing it has
integrated three cohorts of elderly men and women—all of whom have been
studied continuously for six to eight decades. First, there is a sample of
268 socially advantaged Harvard graduates born about 1920—the
longest prospective study of physical and mental health in the world.
Second, there is a sample of 456 socially disadvantaged Inner City men
born about 1930—the longest prospective study of "blue
collar" adult development in the world. Third, there is a sample
of 90 middle-class, intellectually gifted women born about 1910—the
longest prospective study of women's development in the world. (To
call a study prospective means that it studies events as they
occur, and not in retrospect.)
The Harvard (Grant) Cohort
The "Grant Study" of adult development was begun at Harvard
University by Arlie Bock and Clark Heath. These two student health service
physicians had received a gift from a philanthropist, William T. Grant, to
study healthy development. Never dreaming that in the year 2000 the Study
members would still remain active participants, Arlie Bock, in a press
release dated September 30, 1938, described the Study's aims:
Doctors traditionally have dealt
with their patients after troubles of many sorts have arisen. The
Department of Hygiene...proposes to revise this procedure and will attempt
to analyze the forces that have produced normal young men....A body of
facts is needed to replace current supposition. All of us need more do's
and fewer don'ts.
In the original selection process, about 40
percent of each Harvard class were arbitrarily excluded because there was
some question as to whether they would meet the academic requirements for
graduation. Usually this meant a freshman grade average of C or lower. The
health service records of the remaining 60 percent of each freshman class
were then screened, and half the remaining men were excluded because of
evidence of physical or psychological difficulty. Each year the names of
the remaining 300 sophomores were submitted to the Harvard deans, who
selected about 100 boys whom they recognized as "sound."
Over a four-year period, 1939-1942, 268
sophomores were selected for study. Twelve of these students withdrew
while they were still in college, and 8 more withdrew over the next
half-century. For nearly sixty years (or until their deaths), the
remaining 248 men have continued to participate with remarkable loyalty.
They have received questionnaires about every two years, provided records
of physical examinations every five years, and been interviewed about
every fifteen years. The men's wives and their children have also been
asked to provide details of their own lives, as well as observations about
how they viewed their Study husband or father.
In 1940 men who went to Harvard were not
always rich or privileged. But they were almost always white and their
grand-parents had usually been born in the United States. Oldest children
were definitely overrepresented and only 2 percent of the men chosen were
left-handed as contrasted to 10 percent of the general population. Put
differently, the Harvard cohort had been chosen for their capacity to
equal or to exceed their natural ability, and most did so. Four of the 268
ran for the United States Senate. Another net would have had to be cast to
include happy-go- lucky dependent, but equally stable, college men.
After being accepted into the Study, each
man was seen by a psychiatrist for about eight interviews. These
interviews focused on the man's family and on his own career plans and
value systems. The Study psychiatrists made an effort to get to know the
men as people, not patients.
A family worker, Lewise Gregory Davies,
also saw the Harvard men. She took a careful social history from each
sophomore subject. She then traveled the length and breadth of the United
States to meet their parents. In each boy's home she took a family history
that included characterizations of grandparents, aunts, uncles, and made
an estimate of social status. She also obtained from the mother a history
of each boy's infant-and-child development and any family history of
mental illness.
Originally, data were recorded in ink in
huge leather ledgers and analyzed by manual counting. Data were not put
onto punch cards until 1965, not onto magnetic tape until 1975, and not
into the hard drive of an office desktop computer until 1990. Now, as I
write in the year 2000, all of the data of sixty years of study resides in
a laptop on my desk at home.
Socioeconomically, the Harvard sample men
were mainly drawn from a privileged group but not exclusively so. In 1940
a third of their parents had made more than $15,000 a year, but one father
in seven made less than $2,500 ($1.25/hr) annually. (In those days a year
at Harvard cost $1,500, and a registered nurse made $2,000 a year.) If
one-third of the men's fathers had some professional training, one-half of
the men's parents never graduated from college. During college almost half
of the men were on scholarship and/or had to work during the academic
year.
World War II forced the Harvard men into a
common experience that permitted them to be compared with their fellow
citizens on grounds other than academic excellence. Only 11, instead of a
statistically expected 77 out of 268, were rejected for service because of
physical defects. Instead of an expected 36 out of 268, only 3 were
rejected for psychiatric reasons.
With a few exceptions, like the man whose
father made two million dollars a year in the midst of the Depression, the
1940 generation of Harvard men were upwardly mobile and more successful
than their fathers. Returning from active military service in World War
II, the Harvard men benefited from high employment, a valuable dollar, and
the GI bill that virtually guaranteed them an affordable graduate school
education. The men themselves were just young enough to be influenced by
the health-promoting trends of 1960-1980, like smoking cessation and
middle-aged physical fitness.
At age 47 the average earned income of the
Harvard sample was about $105,000 in current dollars. Yet the men were
Democrats more often than Republicans. In 1954 only 16 percent of the
Harvard men had sanctioned the McCarthy hearings; and in 1968, 91 percent
had advocated de-escalating our involvement in Vietnam. To generalize, the
Harvard sample had the incomes and social status of corporate managers;
yet they drove the battered cars and pursued the hobbies, politics, and
lifestyle of college professors.
More important to this book, at age 75 the
mortality of the Harvard sample is only half that expected of white males
in their birth cohort, and their mortality is only three-quarters that of
their Harvard College classmates. Sixty percent of the men have survived
or will survive past their 80th birthday; only 30 percent of white
American males born in 1920 will live that long.
The Inner City Cohort
(The Gluecks' Nondelinquent Controls)
In 1939 Sheldon Glueck, a young law professor at Harvard Law School,
obtained funding to conduct a prospective study of 500 youth sent to
reform school and of 500 matched schoolboys who at age 14 had not been in
any legal trouble. Sheldon Glueck and his wife, Eleanor, a distinguished
social worker, restudied both groups of men at ages 17, 25, and 32.10 Like
the Harvard men, the Inner City men originally agreed to be studied by a
multidisciplinary team of physicians, psychologists, psychiatrists, social
investigators, and physical anthropologists. The Gluecks' research study
has produced two classic texts in criminology. One, written by the Gluecks
themselves and published in 1950, is Unraveling Juvenile Delinquency,
and the other, Crime in the Making, was written forty-four years
later by Robert Sampson and John Laub, two criminologists who were still
in grammar school when the Gluecks died.
The nondelinquent youth—the controls to
whom the reform school boys were compared—shared the same social risk
factors that helped doom the delinquents. They had attended the same inner
city schools and had the same tested intelligence (mean IQ = 95) as the
delinquents. One nondelinquent in four had repeated two grades or more of
school. The controls were also matched with the delinquents for high-crime
neighborhoods and ethnicity. The majority of their parents were foreign
born; for two-thirds of the boys this meant Italy, Ireland, Great Britain,
or Canada. In childhood, half of these Inner City nondelinquents, like
Anthony Pirelli, had lived in clearly blighted slum neighborhoods. Half of
their homes had lacked a tub or shower. By way of contrast, in 1940 only
16 percent of all Boston dwellings were without tub or shower. Half of the
Inner City men came from families known to five or more social agencies,
and more than two-thirds of their families had recently been on welfare.
The Gluecks had last interviewed the Inner
City sample in 1960-1962. At that time, for financial reasons, they
reduced the sample to 456 by excluding the 44 youngest boys. Until I
obtained the funds to reinterview them at age 47 (c. 1975), for fifteen
years all contact had been lost. Since their 40s, when I inherited the
Study from the Gluecks, the men, like the Harvard men, have returned
biennial questionnaires; the most recent one was received in the year 2000
when the men were 68 to 74. They, too, have provided physical examinations
every five years. When they were 60 the Study still knew whether all but
two of the 456 Inner City men were alive or dead.
The Terman Women Sample
For a female comparison group to the Harvard cohort, the Study selected 90
women from the Stanford (Terman) study of gifted children. The Terman
Study began in 1922 when Lewis Terman, a professor of education at
Stanford University, attempted to identify all of the grammar school
children in urban California with IQs of 140 or higher. Before this,
Professor Terman had established his reputation by adapting the French
Binet intelligence test for use in America. From the grammar schools of
Oakland, San Francisco, and Los Angeles Professor Terman had first
selected the 7 percent of children identified by their teachers as the
brightest in each class. He then retested this group individually with the
Stanford-Binet Intelligence Test. In this fashion he identified the 1
percent of Californian urban schoolchildren with IQs greater than 135 to
140. Most were born between 1908 and 1914.
Originally the aim of Terman's selection
process was to identify most of the brightest children in his three-city
area. But when he went back and checked entire schools, he found that he
had probably captured only 80 percent. The intelligence of unattractive
and shy children tended to be overlooked by their teachers. In addition,
all children who attended California private schools (Terman did not
approve of private education) or Chinese-speaking schools were arbitrarily
excluded. Thus, bright upper-class and Chinese-American children were
excluded. Bright children for whom English was a second language were also
at risk for inadvertent exclusion, for the teachers of that day revealed
enormous ethnic prejudices. For example, the father of one Terman woman
was a poet, a chess master, and a former mayor of his town; in addition,
he had obtained three years of graduate education in his profession as a
horticulturist. His daughter's teacher, however, had disdainfully referred
to this cultured man as a "Japanese gardener."
Beginning with Lewis Terman, who studied
his "gifted children" from 1922 to 1956 17 and then continuing
with his successors —first Melitta Oden, 1956-1970, 18 then Robert Sears
(himself a member of the Terman Study), 1970-1989,19 and, finally, Albert
Hastorf, 1990-2000—the Terman cohort has been studied for almost eighty
years. These four generations of investigators have followed the Terman
men and women by questionnaire about every five years and by personal
interview in 1940 and 1950. After sixty-five years of follow-up,
attrition, for reasons other than death or invalidism, is still less than
10 percent. Unfortunately, the Terman women were not asked to provide
regular physical exams.
In personality traits, the Terman women
showed significantly more humor, common sense, perseverance, leadership,
and even popularity than their classmates. They were as likely as their
classmates to marry, but their physical health was better. Compared to
their classmates, they had better nutrition, better mental stability,
fewer headaches, and fewer middle-ear infections. Their siblings suffered
only half the childhood mortality experienced by the siblings of their
classmates. Finally, by age 80, like the Harvard sample, the Terman women
have enjoyed a mortality only half what would be expected for white
American women in their birth cohort.
In 1987, through the generosity of Stanford
professors Robert Sears and Albert Hastorf, my wife, Caroline Vaillant,
and I were permitted to select for reinterview a representative subsample
of 90 women from Terman's original sample of 672. We found that 29 of
these 90 women had died; and owing to bad health or poor cooperation, 21
surviving women were not seen. We reinterviewed the remaining 40 women.
Their average age at interview was 78—the same age as the men of the
Harvard cohort who were last followed up in 1999. Except for the vastly
inferior physical health reported in their questionnaires, available data
suggested that the 50 uninterviewed women did not differ significantly
from the 40 women whom we did interview.
Comparison of the Three Cohorts
At the time of their last study, all the Terman women were old-old
(seventy to seventy-nine), and a third of the Harvard men were entering
the world of the oldest-old (eighty plus). Only half of the Inner City men
had passed from being young-old (sixty to sixty-nine) to old-old. In terms
of physical decline the mortality of Inner City men at sixty-eight to
seventy was the same as that of the Terman and Harvard cohorts at age
seventy-eight to eighty. Most of this difference in health could be ex-plained
by less education, more obesity, and greater alcohol/ cigarette abuse
among the Inner City cohort. When these four variables were controlled,
their much lower parental social class, IQ, and current income were not
important. Put differently, the health of the 29 Inner City men who
graduated from college was identical at age 70 to the health of the
Harvard College graduates at age 70.
Although each of the three cohorts in the
Study of Adult Development was in itself relatively homogeneous, the
samples were very different from each other. A third of the Harvard men's
fathers, but none of the Inner City men's fathers, were in social class I
(physicians, successful lawyers, and businessmen). A third of the Inner
City men's fathers, but none of the Harvard men's fathers, were in Social
Class V (unskilled laborers with less than ten grades of education). The
parents of the Terman women were largely middle class or skilled laborers
(Social classes III and IV); few of their fathers were as privileged as
those of the Harvard men or as disadvantaged as those of the Inner City
men.
The table illustrates the contrasts between
the three cohorts. As noted, the mean (Binet) IQ of the Terman women was
151; the mean (Wechsler-Bellevue) IQ of the Inner City sample was 95; the
estimated mean (army alpha) IQ of the Harvard sample was between 130 and
135. The mean education of the Terman women's fathers was twelve years in
contrast to eight years for the fathers of the Inner City men and sixteen
years for the fathers of the Harvard men. While none of the Inner City
mothers had gone to college, a third of the mothers of the Harvard men had
graduated from college—twice as many as the mothers of the Terman women.
A third of the Inner City men had less than ten grades of education, while
a quarter of the Terman women and three-quarters of the Harvard men
obtained a graduate school degree.
One final commonality of how these three
prospective studies were conducted was that all relied on interviews with
the Study members and with parents and teachers. The Study often made use
of recorded sources of public information. Ambiguity about whether a life
was successful could often be resolved by the use of multiple sources of
information. In this book, I may illustrate a point by quoting what a
member said during an interview, but my conclusions are almost always
supported by more objective evidence. Behavior, not words, predicts the
future and reflects the past.
For example, the stepfather of an Inner
City man was described by his wife as a man who until recently had been
"quite a heavy drinker who would drink anything," but who now
"only bought a small bottle of wine every day." She claimed that
he was a social drinker and that his use of alcohol never interfered with
his work. Field investigation revealed a very different story. Five years
earlier a social agency had noted the stepfather had been laid off from
work "probably from drunkenness," and that he had a long arrest
record for drunkenness. A child welfare agency noted that the
"stepfather is apt to be too drunk to be a companion." Two years
after the interview, the stepfather had been arrested three more times for
drunkenness and twice was committed to a state hospital for alcohol abuse.
Five years after his wife alleged that he "only brought home a small
bottle of wine," his death certificate noted the primary cause of his
death as "cirrhosis and alcoholism." In similar ways,
assessments of vague but important judgments like the quality of parental
affection or marital support could be substantiated from several points of
view and at several different points in time.
On the one hand, none of the three cohorts
can be viewed as representative of the general population. On the other
hand, the three samples do have the virtue of being demographically vastly
different from each other; yet within each sample there was considerable
homogeneity. Thus, the similarities between the groups and the differences
within the groups may be generalizable to other American Caucasian
samples. Like the proverbial half loaf of bread, these studies are not
perfect; but for the present they are, arguably, the best lifelong studies
of adult development in the world.
At times readers may be irritated that the
Harvard examples outnumber stories of women and of the less socially
privileged Inner City men. The Study has, for a variety of reasons, more
information about the Harvard cohort. But usually the conclusions drawn
from each of the three groups were the same.
The Author
As we shall see, this book is filled with both data and judgment calls;
and in many ways, the latter are the most emphasized. That being the case,
the reader is more than entitled to some acquaintance with the person
making most of the judgments, namely me. After all, I have my biases and
prejudices that I cannot guarantee haven't affected my observations. So
the reader needs to take them into account. I was born in New York City in
1934. My father died when I was ten. When I was thirteen I found myself
fascinated to read the report of his Harvard College class of 1922
twenty-five years after graduation. Of course, I did not then anticipate
that twenty years later I would be interviewing the men of the class of
1942 at their twenty-fifth reunion. I attended Harvard College, and one
way or another I have maintained a Harvard connection for almost fifty
years. Like many, I fancy myself a political independent, but longitudinal
hindsight reveals that over 44 years I have voted only for Democrats for
president.
Unlike my archaeologist father I took no
courses in college in the social sciences and, certainly, none in
anthropology. Instead, I learned the history of science from a young
section man named Tom Kuhn, took premed courses, but majored in the
humanities. I attended Harvard Medical School with plans to become a
community psychiatrist in the public sector. Instead, I became fascinated
by interviewing "remitted" schizophrenics and abstinent heroin
addicts whose clinical records from ten to fifty years before I had
managed to discover. I was intrigued by the changes in their lives, which
to me looked a lot like maturation. Adult development happened, and to
understand it further seemed worth my professional lifetime.
Thus, in 1967, in the Harvard cohort's
thirtieth year, I was excited to join the Grant Study, as it was then
called. I became a research professor instead of a community psychiatrist.
Although I had always denied interest in his field of archaeology, I now
found myself more than twenty years after my father's death rummaging
through dusty files in search of artifacts from the past of Harvard men
and muttering to myself, "I've turned into a god-damned archaeologist
after all." In 1967 the Study members had begun returning to their
twenty-fifth Harvard reunions. As a 33-year- old psychiatrist who had just
reviewed their extensive records, I was able to interview them in the
flesh. I marveled as before my fascinated eyes the men metamorphosed from
adolescents in the Study records—even more callow than I—into mature
fathers of adolescents. At age 47 many of these "normal" men
were at the top of their game. For years I had been trained to study
pathology; now it seemed equally exciting to study health.
By 1972 I had reinterviewed a hundred
Harvard men at an average age of forty-seven and had experienced enough
troubles of my own to have a fuller sense of the ups and downs of any life
trajectory. Yet I was more exhilarated than distressed by the complexity
of the lives I was studying. In 1977, when the men were fifty-five, I
published a book on adult maturation, Adaptation to Life. By that time I
assumed that the college men had stopped growing. What did I know? I was
only forty-three.
Rich as these lives were, however, the
demographic biases implicit in any study of Harvard men meant that the
picture I was getting of adult development was necessarily skewed. If I
was going to understand "how people keep well and do well" I
needed to study a less rarified sample.
In 1970, because of my long-term follow-up
of heroin addicts, Sheldon and Eleanor Glueck on their retirement
appointed me as one of the three curators of their groundbreaking case
files of juvenile delinquents and matched controls. These disadvantaged
but resilient controls, of course, made a splendid foil for the "overprivileged"
Harvard men. Funded by the National Institute of Alcohol and Alcohol
Abuse, my colleagues and I spent the years from 1974 to 1978
reinterviewing the Inner City men. They were the same age as the Harvard
men when I had first interviewed them.
Interviews with Study members were
consistently exhilarating and exhausting. Indeed, because so much was
known about each member, there was an intensity to many of the interviews
that was both gratifying and surprising. Talking with Study members was
often like resuming an old friendship after a period of separation. Study
members who had always found loving easy made me feel warmly toward them,
and led me to marvel at their good fortune in belonging to such an
enjoyable project. In contrast, Study members who had spent their lives
fearful of other people and who had gone unloved in return often made me
feel incompetent and clumsy. With them I often felt drained and depressed
as if I had done all of the work in the interviews while they took much
and gave nothing.
By 1980 the inexorable thrust of adult
development had continued. The Harvard men were now 60 and I had just
attended my own twenty-fifth Harvard reunion. It had become clear that not
only was I committed to following these men for the rest of their lives,
but also that I was embarked on a study of aging. Up to that time I had
entertained as little interest in gerontology as I had once shown for
archaeology. But now, at 46, I was becoming as interested in understanding
what life after retirement might be like as I once had been in learning
about what it was like to be 45. Besides, since I had already studied the
"recovery" process from maladies thought by many to be
incurable-schizophrenia, alcoholism, heroin dependence, and personality
disorder, to study positive mastery of "old age" seemed a
challenging next step. My funding source shifted from the National
Institute of Alcohol and Alcohol Abuse to the National Institute of Aging.
In 1985 I finally grew up enough to realize that I could not understand
human development if I just studied men—a minority group. Thanks to the
generous help from the Henry A. Murray Center at Radcliffe (now Harvard)
and from Stanford Univer-sity -especially from Professor Albert Hastorf—my
wife, Caroline Vaillant, and I reinterviewed Lewis Terman's gifted women.
When we interviewed them in 1987 the Terman women were seventy-six to
seventy-nine. I was still fifty-two. Not until I had grown up for another
ten years and begun interviewing the Harvard men between seventy-five and
eighty did I really begin to appreciate the lessons that the three groups
were teaching. Adult development affects us all. Now I, too, get a Social
Security check.
The Importance of Prospective Study
I have stressed that the significance of the Study of Adult Development is
that it is prospective. But why is that important? The extraordinary value
of a prospective study lies in the uniqueness of its perspective. A
longitudinal follow-back study must depend on memory; a prospective study
records events as they happen. Thus, if we wish to understand how our
octogenarian role models became that way, it is critical that the elderly
survivors should have been followed since adolescence. There are several
reasons why this is so.
First, prospective study allows us to view
the happy, successful great-grandparents against a background of peers who
died young. Is death at an early age merely one more manifestation of God
playing dice with the universe, or could many such premature deaths have
been prevented? Are those who die young less well loved and less mentally
healthy than those who die old? Or is it just genes? Previous studies of
"successful aging" have usually not begun until age sixty or
seventy; they have not possessed the prospectively gathered data to
address such questions. In them premature deaths are invisible. Chapter 7
of this book will answer the above questions.
Second, prospective study means that we do
not have to depend on the subject's memory of what happened yesteryear. It
is all too common for caterpillars to become butterflies and then to
maintain that in their youth they were little butterflies. In October 1941
a young Harvard member had said of America's increasing hostility toward
Germany on the eve of our entry into the war: "I am extremely
disheartened. I feel the war in Europe [is] none of our business." By
the winter of 1966-1967, however, he fully subscribed to Lyndon Johnson's
military policies in Vietnam and condemned his sons for actively
protesting American involvement. He had completely forgotten his own
public demonstrations against American involvement in World War II.
Third, only prospective study permits one
to demonstrate objectively the Freudian concept of repression. As a
Harvard sophomore, Fritz Lethe had assured the Study that there was no
truth in Freud's sexual theories. He boasted to the Study psychiatrist
that he would drop a friend who engaged in premarital sexual intercourse.
The psychiatrist observed, however, "While disapproving of sexual
relations, Fritz is frankly very much interested in it as a topic of
thought." At 19, Lethe was also terribly prejudiced against
"sneaky liberals" and tore up "propaganda" from the
Harvard Liberal Union. He also told the psychiatrist, "I have a drive
-a terrible one. I've always had goals and ambitions that were beyond
anything practical."
Later, Lethe rewrote his life story. At age
30 he saw his earlier "terrible drive" as derived from his
mother. He saw her as his greatest personal problem. "All my life I
have had her dominance to battle against...the major change in my
philosophy is relevant to my goals in life. My goals are no longer to be a
great in science, but to enjoy working with people." By age 49 Mr.
Lethe also believed in Freud and premarital sex. The goals of "sneaky
liberals" were no longer contemptible. He now believed that "the
world's poor [were] the responsibility of the world's rich."
In his interview at age 50, Lethe
proclaimed, "God is dead and man is very much alive and has a
wonderful future." He now maintained that he had doubted the validity
of religion and had stopped going to church as soon as he had arrived at
Harvard. Such a memory did not jibe with the fact that as a Harvard
sophomore, he reported going to Mass four times a week!
But his memory distortions did not stop
there. When Fritz Lethe was 55, I sent him the above vignettes so that he
might grant me permission to publish them in my book on the Harvard
sample, Adaptation to Life. He sent my text back with a terse
note: "George, you must have sent these to the wrong person." He
was not trying to be funny. He could not believe that his college persona
could have ever been him. Maturation makes liars of us all.
Fourth, prospective study also reveals that
distortions of memory can be adaptive and creative. Let me offer an
example from the life of a Terman woman, Matilda Lyre. At age 78, when
asked if she had been interested in becoming a doctor, Lyre replied
reprovingly, "You have to remember women have come a long way. I
never even thought about being a doctor as a possibility." In point
of fact, at 14 she had told the Terman staff that she wanted to be a
doctor. In college she had majored in premedical studies, and at age 30
her Strong Vocational Interest Inventory had suggested medicine as the
vocation best suited to her interests. Indeed, as a child, Matilda Lyre,
besides wanting to be a doctor, had wanted to be an astronomer and a poet
and a scientist.
But her rewriting of history was healing.
When Lyre was 20, one of the Terman staff described her as someone
"who seems to adorn anything she attempts." At Berkeley she
became editor of the college literary magazine. She was on their all-star
swimming team, and as a very young woman, she traveled throughout
California giving lectures and writing articles. Then gender bias and
limited economic opportunities during the Great Depression combined to
squash Matilda Lyre's talents. As a result she began her young adulthood
as a part-time physical education teacher in a small town. When her
husband found work, she had to give up even that job; for during the 1930s
if their husbands obtained jobs, California female teachers had to resign
from theirs. School jobs were too scarce for one family to have two.
When she was 78 we also asked Matilda Lyre
how she had dealt with the gap between what society had allowed her to
achieve and her potential. She responded, "I never knew I had any
potential...I had to learn to cook and raise a garden." Her life
story, then, became in part a reconstruction to make a life frustrated by
prejudice, the Great Depression, and poverty in a small town bearable.
However, the saga of Matilda Lyre reveals
that developmentally blighted lives can enjoy happy endings, that the
futures of the elderly matter, and that they are interesting. When she was
30 Matilda Lyre's Strong Vocational Interest Inventory revealed that
besides being suited to being a doctor, she was well suited to becoming a
musician. For most of her adult life, Matilda had not allowed herself to
develop this side of her persona; finally, at age 60, she took violin
lessons. A little later, after she divorced her husband, she inherited a
beautiful violin from her best friend, and her musical career took off.
For the last six years this one-time-unemployed physical education teacher
has been giving solo violin concerts in Los Angeles and loving it. And at
age 78 there was no evidence that her new career would not continue.
A fifth reason why prospective study is
valuable is that such study allows its members time enough to overcome
shame— and deliberate falsification. For example, one man explained to
the Study, "My replies have been frank, but with a period of delay.
Whenever anything was badly wrong I tried to suppress it, and on the next
Grant Study questionnaire I tried to claim that everything was going fine,
but that was an effort. The effort convinced me that I had better do
something about the situation. If you want to find out what is really
happening to me read the next questionnaire or the one after that. Having
to face my situation, having to formulate an attitude and then having to
conceal the situation temporarily have been in the long-run healthy for
me." Sixth, perhaps the most important benefit of prospective study
is that it permits distinguishing effect from cause—cart from horse, as
it were. For example, in interviewing these individuals I often concluded
that those who had abused alcohol had done so as a home remedy for their
clinical depression. They agreed. However, review of their ongoing case
records by two independent psychiatrists, one focusing on alcohol abuse
and the other on depression, revealed a quite different conclusion. The
symptoms of their alcohol abuse had usually come first; the symptoms of
major depression came only later. Like most individuals afflicted with
both maladies, the members of the Study could acknowledge their depression
but not their alcoholism; and so their retrospective narratives reversed
cause and effect. Prospective review of those narratives put them back in
order.
Drawbacks to Prospective Studies
If prospective longitudinal studies are so important, why don't we do more
of them? The short answer is expense. Prospective studies of human
lifetimes are extremely expensive in four currencies: money, luck,
investigator perseverance, and subject loyalty. First, granting agencies
are reluctant to continue funding the "same old study."
Therefore, many promising prospective studies of lives have starved to
death financially. To keep the Study of Adult Development going for six to
eight decades has cost millions of dollars in consecutive grants from
roughly twenty different funding sources.
Second, it took not only talent and dogged
perseverance, but it also took unusually good luck for Joe DiMaggio to hit
safely in fifty-six consecutive games. Similarly, it has taken enormous
luck for the Terman Study, the Glueck Study, and the Harvard Study to
survive academic and funding vagaries, not only to the maturity of their
subjects, but into their old age. Third, many studies have fallen victim
to lack of perseverance or the death of the original investigators. Thus,
it has been also due to the patience of its several generations of
directors that the Study has survived.
But, to be more honest and more humble, it
is the fourth expense, the extraordinary loyalty and patience of its
members, that is most essential to create a valuable prospective study.
Attrition from a prospective study, like the breakage of unique antiques,
cannot be repaired. Thus, low attrition frees study conclusions from a
bias that usually plagues prolonged prospective studies— selective loss
of members. (The Study of Adult Development has been blessed with the
lowest attrition rate of any comparable study in the world—except
perhaps the Lundby Study in Sweden.)
Besides expense, a second problem that
besets prospective studies is "halo effects." By halo effect I
mean that to know of someone's past biases our judgment of their present.
An ordinary wine tastes very different if poured from a bottle with a
Chateau Lafitte label than from a screw-top jug labeled Thunderbird. To
avoid this limitation we took many precautions. Raters of the Study
members' childhoods were, of course, blind to the future; and raters of
the present were kept blind to the men's and women's childhoods. Raters
were also blinded to ratings by other judges. Perhaps thirty different
research assistants have worked on this Study. Most were asked to make
independent ratings before they, too, became biased. As director of the
Study for thirty years, my judgments of the present have been profoundly
influenced by my knowledge of the members' past. For that reason, I have
rarely provided numerical ratings for the Study database. The thoughtful
reader may also ask whether a third disadvantage to prolonged study is
that it alters the members' lives. What about the so-called Heisenberg
effect? Do we not always change that which we study? As a psychotherapist
I must reply, "Alas, if only changing the course of human lives were
so easy." If occasionally watching people over the course of a
lifetime changed their lives, intensive psychotherapy would be a much more
effective force for change than it is. It is true that the Heisenberg
effect may apply to electrons studied by physicists, but our own close
inspection of a speeding bullet does not usually alter its course. So it
is with subjects in a longitudinal study. By studying the members for long
periods we may distort what we see, but we don't, necessarily, change
them.
A final and very important disadvantage of
long-term prospective studies is that they are not representative. They
are always limited in size, in historical time, and in composition. Since
the Study subjects were all selected for health or nondelinquency or
intelligence, they can only illustrate how life unfolds under favorable
circumstances. Therefore, the reader may fairly ask how a book about
relatively prosperous white Americans chosen for mental health can teach
us anything about general humanity. My answer is that in order to
understand normal biological development, climate and growing conditions
should be optimal.
Had I tried to study successful aging in a
random sample of 10,000 of the world's population, my cohort, while being
"representative" and "politically correct," would have
been so heterogeneous as to boggle both mind and computer. Besides,
randomness is neither normal nor healthy. In addition, unlike sociologists
and demographers, biologists do not study all of the creatures of Noah's
ark simultaneously. Biologists study liver enzymes in purebred rats; they
study genetics in the fruit fly; and they study neurophysiology in a
single ganglion of the sea snail. Furthermore, control of confounders is
essential. For example, the rate of onset of physical disability was
dramatically different if Study men had had ten years or sixteen years of
education. Thus, in order to study some causes of physical disability
other variables must be held constant.
Readers must decide for themselves when the
Study members and their behavior reflect people as they know them and when
it seems they are reading about unfamiliar tribes. My own belief is that
cross-cultural studies will show that mental health from one part of the
world to another does not differ as much as we might think. Consider, for
example, that the diets of a New York construction worker, of a Japanese
aristocrat, and of an Australian aboriginal appear extraordinarily
different; but the healthy balance of basic food groups in each diet that
makes it nutritious is rather constant. Be that as it may, the three Study
cohorts are all unrepresentative. Readers must exercise proper caution
about any conclusions that I may draw.
A few years ago a wise participant and
Study member, Ted Merton, wrote to me "testily but cordially":
Here you have these wonderful
files, and you seem little interested in how we cope with increasing age.
You ask us what we can no longer do, what our politics are, whether we're
spiritual, how bad is our health, etc., but I detect little curiosity
about our adaptability, our zest for life, how our old age is, or isn't,
predictable from what went before. You seem mostly to want to chronicle
progressive deterioration instead of taking advantage of a database with
which to examine aging as thoroughly, as imaginatively, and as vigorously
as you did our youth and early adulthood. Young people are always more
attractive than the elderly, but they're not necessarily more interesting.
We may be has-beens, but does the Study have to be? I write to call your
attention to the repeated innuendo that our futures no longer matter...
The rest of this book will be an effort to
respond to his wise advice. I will use true-life narratives to offer a
guide for positive, interesting old age. The next five chapters will
describe the developmental processes that make old age vital. Then,
chapters 7 through 10 will try to unpack critical components of the last
two decades of life: first, being ill without feeling sick; second,
regaining a capacity for creativity and play in retirement; third, the
acquisition of wisdom; and fourth, the cultivation of spirituality. The
final two chapters, 11 and 12, will summarize the lessons that I have
learned from the Study. I shall attempt to leave readers with greater hope
for their final decades than is provided by Simone de Beauvoir in her
brilliant monograph The Coming of Age or by the equally brilliant
but equally dispiriting quip "Old age is not for sissies."
In his fifties, in The Seasons of a
Man's Life, Daniel Levinson wrote gloomily that men approaching 60
may "feel that all forms of youth...are about to disappear,...a man
fears that the youth within him is dying and that only the old man—an
empty dry structure devoid of energy, interest or inner resources— will
survive for a brief and foolish old age."29 In contrast, Betty
Friedan in her seventies wrote in The Fountain of Age: "We
have barely even considered the possibilities in age for new kinds of
loving intimacy, purposeful work and activity, learning and knowing,
community and care....For to see age as continued human development
involves a revolutionary paradigm shift."30 This book will provide
clear evidence to support such a paradigm shift.
To convey Study findings, I have
selected examples that reflect important issues for more than one member
of this Study. I hope they will describe many others outside of it. Any
resemblance between individuals in this Study and persons living or dead
will be entirely intentional; but I have used pseudonyms and altered
identifying detail and specific affiliations. Thus, if the narrative
detail fits anyone of the reader's acquaintance too closely, it will
almost certainly turn out that he or she has identified the wrong person.
Study members who are still living have granted me their permission to
print their disguised biographies.
Copyright © 2002 by George E. Vaillant,
M.D.
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