The Story of the Human Body: Evolution, Health, and Disease

The Story of the Human Body: Evolution, Health, and Disease

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by Daniel Lieberman

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In this landmark book of popular science, Daniel E. Lieberman gives us a lucid and engaging account of how the human body evolved over millions of years. He illuminates the major transformations that contributed to key adaptations to the body: the rise of bipedalism; the shift to a non-fruit-based diet; the advent of hunting and gathering; and how cultural

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In this landmark book of popular science, Daniel E. Lieberman gives us a lucid and engaging account of how the human body evolved over millions of years. He illuminates the major transformations that contributed to key adaptations to the body: the rise of bipedalism; the shift to a non-fruit-based diet; the advent of hunting and gathering; and how cultural changes like the Agricultural and Industrial Revolutions have impacted us physically. He shows how the increasing disparity between the jumble of adaptations in our Stone Age bodies and advancements in the modern world is occasioning a paradox: greater longevity but increased chronic disease. And finally—provocatively—he advocates the use of evolutionary information to help nudge, push, and sometimes even compel us to create a more salubrious environment and pursue better lifestyles. 

[With charts and line drawings throughout.]

Editorial Reviews

Publishers Weekly
In thoroughly enjoyable and edifying prose, Lieberman, professor of human evolution at Harvard, leads a fascinating journey through human evolution. He comprehensively explains how evolutionary forces have shaped the human species as we know it, from the move to bipedalism, and the changes in body parts—from hands to feet and spine—that such a change entailed, to the creation of agrarian societies, and much more. He balances a historical perspective with a contemporary one—examining traits of our ancestors as carefully as he looks to the future—while asking how we might control the destiny of our species. He argues persuasively that “cultural evolution is now the dominant force of evolutionary change acting on the human body,” and focuses on what he calls “mismatch diseases” that are caused by lack of congruence between genes and environment. Since the pace of cultural evolution has outstripped that of biological evolution, mismatch diseases have increased to the point where most of us are likely to die of such causes. Lieberman’s discussion of type 2 diabetes, heart disease, and breast cancer are as clear as any yet published, and he offers a well-articulated case for why an evolutionary perspective can greatly enrich the practice of medicine. Agent: Max Brockman, Brockman Inc. (Oct.)
Library Journal
Chair of the Department of Human Evolutionary Biology at Harvard, Lieberman gracefully combines paleontology, anatomy, physiology, and experimental biomechanics to clarify how the human body has evolved, from the emergence of bipedalism to the growth of modern cultural abilities. Now, he shows, we are troubled by dysevolution as our long-evolved bodies fail to fit the contemporary world and respond by developing diseases like diabetes.
Kirkus Reviews
Six million years of biological evolution have produced a human body ill-adapted to the diets and lifestyles that cultural evolution has wrought since modern humans emerged. That is the core message of this massive review of where we came from and what ails us now. Lieberman (Human Evolutionary Biology/Harvard Univ.; The Evolution of the Human Head, 2011, etc.) writes authoritatively about the fossil record, crediting bipedalism as the driver that freed hands to learn new skills, enabled foraging for diverse diets and chasing prey, and ultimately built bigger brains. In time, humans spread across the globe in hunter-gatherer groups. Thus we remained until the agricultural and industrial revolutions spurred population growth, changed diets, and introduced new infectious and chronic diseases--while little altering our hunter-gatherer anatomy and physiology. Lieberman examines energy balance--calories taken in vs. calories expended--and good shape. Analyzing today's creature comforts, processed food (with addictive amounts of sugar, salt and fat) and lack of exercise, it is no wonder we are seeing rises in obesity and risks for heart disease, diabetes, osteoporosis and the like. Lieberman calls these diseases of "mismatch" (of biological evolution and culture) and medicine's emphasis on treating symptoms, "dysevolution," which means perpetuating the diseases instead of preventing them. The repeated emphasis on all the bad things humans do is wearying. By no means does Lieberman discount all the good that modern society has achieved, but that message is nearly drowned by the constant admonition to do right by your body. Alas, he is the first to admit that changing human behavior is notoriously hard. At best, he offers a "soft paternalism"--e.g., government controls of children's environments (more physical education and better lunches) and taxing the unhealthy choices of adults. Readers have likely heard this song before but perhaps not so exhaustively and well-referenced as in Lieberman's opus. Would that industry and governments take heed.

Friedrich Nietzsche called the human body "a big sagacity; a plurality with one sense; a war and a peace; a flock and a shepherd." All those functions and battles come alive in this popular science book that traces the evolution of humankind in functions, health, and disease. Contemporary readers will be especially intrigued by Lieberman's account of chronic diseases such as type-2 diabetes, obesity, and heart disease as instances of "dysfunction" in action. Harvard professor Lieberman is a graceful writer whose insights and remedies carry persuasive force.

From the Publisher
"No one understands the human body like Daniel Lieberman or tells its story more eloquently. He's found a tale inside our skin that's riveting, enlightening, and more than a little frightening."
—Christopher McDougall, author of Born to Run
“Monumental: The Story of the Human Body, by one of our leading experts, takes us on an epic voyage that reveals how the past six million years shaped every part of us—our heads, limbs, and even our metabolism. Through Lieberman’s eyes, evolutionary history not only comes alive, it becomes the means to understand, and ultimately influence, our body’s future.”
—Neil Shubin, author of Your Inner Fish

“These are not debates to gloss over or reduce to simple statements of cause and effect — they are stories with scientific complexity and tremendous, sometimes contradictory accumulations of evidence and detail. The Story of the Human Body does full justice to those stories, to that evidence and to that detail, and brings them to bear on daily health and well-being, individual and collective.
Washington Post

“[Lieberman] is a true expert in a system where architecture and history intersect: the human foot. He ably describes how behavior and anatomy can lead to foot injuries in long-distance runners.”
Wall Street Journal

“In thoughtful, lucid prose backed up by a hard-to-fathom amount of research, Lieberman gives us the language to understand the history of our ancestors—the history that lives on in our minds and in our bodies . . . The Story of the Human Body, expertly researched and told in an original voice, will make you look at your own body more critically—and perhaps treat it with a little more respect. After all, we sit at the edge of millions of years of small refinements that stretched this part and shortened that piece. Lieberman shows how it all fits together and that it was no accident.”
Everyday eBook

“Eloquent and precise . . . Lieberman is the first to point out that modern living and technology have made our lives better in many ways. Still, a look back at where we came from can tell us a lot about where we’re headed, he says—and how we might alter that course for the better.”

“In thoroughly enjoyable and edifying prose, Lieberman . . . leads a fascinating journey through human evolution. He comprehensively explains how evolutionary forces have shaped the human species as we know it . . . . He balances a historical perspective with a contemporary one . . . while asking how we might control the destiny of our species. He argues persuasively that ‘cultural evolution is now the dominant force of evolutionary change acting on the human body.’”
Publishers Weekly (starred review)

“Lieberman holds nothing back . . . He cleverly and comprehensively points out the perils of possessing Paleolithic anatomy and physiology in a modern world and bemoans ‘just how out of touch we have become with our bodies’. . . If we want to continue our phenomenal run as a species, it is essential to understand (and embrace) our evolutionary legacy.”

“A massive review of where we came from and what ails us now . . . Would that industry and governments take heed.”
—Kirkus Reviews

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Product Details

Knopf Doubleday Publishing Group
Publication date:
Product dimensions:
6.30(w) x 9.30(h) x 1.80(d)

Read an Excerpt

Like most people, I am fascinated by the human body, but unlike most folks, who sensibly relegate their interest in people’s bodies to evenings and weekends, I have made the human body the focus of my career. In fact, I am extremely lucky to be a professor at Harvard University, where I teach and study how and why the human body is the way it is. My job and my interests allow me to be a jack-of-all trades. In addition to working with students, I study fossils, I travel to interesting corners of the earth to see how people use their bodies, and I do experiments in the lab on how human and animal bodies work.
Like most professors, I also love to talk, and I enjoy people’s questions. But of all the questions I am commonly asked, the one I used to dread the most was “What will human beings look like in the future?” I hated this question! I am a professor of human evolutionary biology, which means I study the past, not what lies ahead. I am not a soothsayer, and the question made me think of tawdry science fiction movies that depict humans of the distant future as having enormous brains, pale and tiny bodies, and shiny clothing. My reflexive answer was always something along the lines of: “Human beings aren’t evolving very much because of culture.” This response is a variant of the standard answer that many of my colleagues give when asked the same question.
I have since changed my mind about this question and now consider the human body’s future to be one of the most important issues we can think about. We live in paradoxical times for our bodies. On the one hand, this era is probably the healthiest in human history. If you live in a developed country, you can reasonably expect all your offspring to survive childhood, to live to their dotage, and to become parents and grandparents. We have conquered or quelled many diseases that used to kill people in droves: smallpox, measles, polio, and the plague. People are taller, and formerly life-threatening conditions like appendicitis, dysentery, a broken leg, or anemia are easily remedied. To be sure, there is still too much malnutrition and disease in some countries, but these evils are often the result of bad government and social inequality, not a lack of food or medical know-how.
On the other hand, we could be doing better, much better. A wave of obesity and chronic, preventable illnesses and disabilities is sweeping across the globe. These preventable diseases include certain cancers, type 2 diabetes, osteoporosis, heart disease, strokes, kidney disease, some allergies, dementia, depression, anxiety, insomnia, and other illnesses. Billions of people are also suffering from ailments like lower back pain, fallen arches, plantar fasciitis, myopia, arthritis, constipation, acid reflux, and irritable bowel syndrome. Some of these troubles are ancient, but many are novel or have recently exploded in prevalence and intensity. To some extent, these diseases are on the rise because people are living longer, but most of them are showing up in middle-aged people. This epidemiological transition is causing not just misery but also economic woe. As baby boomers retire, their chronic illnesses are straining health-care systems and stifling economies. Moreover, the image in the crystal ball looks bad because these diseases are also growing in prevalence as development spreads across the planet.
The health challenges we face are causing an intense worldwide conversation among parents, doctors, patients, politicians, journalists, researchers, and others. Much of the focus has been on obesity. Why are people getting fatter? How do we lose weight and change our diets? How do we prevent our children from becoming overweight? How can we encourage them to exercise? Because of the urgent necessity to help people who are sick, there is also an intense focus on devising new cures for increasingly common noninfectious diseases. How do we treat and cure cancer, heart disease, diabetes, osteoporosis, and the other illnesses most likely to kill us and the people we love?
As doctors, patients, researchers, and parents debate and investigate these questions, I suspect that few of them cast their thoughts back to the ancient forests of Africa, where our ancestors diverged from the apes and stood upright. They rarely think about Lucy or Neanderthals, and if they do consider evolution it is usually to acknowledge the obvious fact that we used to be cavemen (whatever that means), which perhaps implies that our bodies are not well adapted to modern lifestyles. A patient with a heart attack needs immediate medical care, not a lesson in human evolution.
If I ever suffer a heart attack, I too want my doctor to focus on the exigencies of my care rather than on human evolution. This book, however, argues that our society’s general failure to think about human evolution is a major reason we fail to prevent preventable diseases. Our bodies have a story—an evolutionary story—that matters intensely. For one, evolution explains why our bodies are the way they are, and thus yields clues on how to avoid getting sick. Why are we so liable to become fat? Why do we sometimes choke on our food? Why do we have arches in our feet that flatten? Why do we have backs that ache? A related reason to consider the human body’s evolutionary story is to help understand what our bodies are and are not adapted for. The answers to this question are tricky and unintuitive but have profound implications for making sense of what promotes health and disease and for comprehending why our bodies sometimes naturally make us sick. Finally, I think the most pressing reason to study the human body’s story is that it isn’t over. We are still evolving. Right now, however, the most potent form of evolution is not biological evolution of the sort described by Darwin, but cultural evolution, in which we develop and pass on new ideas and behaviors to our children, friends, and others. Some of these novel behaviors, especially the foods we eat and the activities we do (or don’t do), make us sick.
Human evolution is fun, interesting, and illuminating, and much of this book explores the amazing journey that created our bodies. I also try to highlight the progress achieved by farming, industrialization, medical science, and other professions that have made this era the best of all times so far to be a human. But I am no Pangloss, and since our challenge is to do better, the last few chapters focus on how and why we get sick. If Tolstoy were writing this book, perhaps he might write that “all healthy bodies are alike; each unhealthy body is unhealthy in its own way.”
The core subjects of this book—human evolution, health, and disease—are enormous and complex. I have done my best to try to keep the facts, explanations, and arguments simple and clear without dumbing them down or avoiding essential issues, especially for serious diseases such as breast cancer and diabetes. I have also included many references, including websites, where you can investigate further. Another struggle was to find the right balance between breadth and depth. Why our bodies are the way they are is simply too large a topic to cover because bodies are so complex. I have therefore focused on just a few aspects of our bodies’ evolution that relate to diet and physical activity, and for every topic I cover, there are at least ten I don’t. The same caveat applies to the final chapters, which focus on just a few diseases that I chose as exemplars of larger problems. Moreover, research in these fields is changing fast. Inevitably some of what I include will become out of date. I apologize.
Finally, I have rashly concluded the book with my thoughts about how to apply the lessons of the human body’s past story to its future. I’ll spill the beans right now and summarize the core of my argument. We didn’t evolve to be healthy, but instead we were selected to have as many offspring as possible under diverse, challenging conditions. As a consequence, we never evolved to make rational choices about what to eat or how to exercise in conditions of abundance and comfort. What’s more, interactions between the bodies we inherited, the environments we create, and the decisions we sometimes make have set in motion an insidious feedback loop. We get sick from chronic diseases by doing what we evolved to do but under conditions for which our bodies are poorly adapted, and we then pass on those same conditions to our children, who also then get sick. If we wish to halt this vicious circle then we need to figure out how to respectfully and sensibly nudge, push, and sometimes oblige ourselves to eat foods that promote health and to be more physically active. That, too, is what we evolved to do.

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The Story of the Human Body: Evolution, Health, and Disease 5 out of 5 based on 0 ratings. 3 reviews.
LDelano1987 More than 1 year ago
Absolutely brilliant...Thanks Dan!
Anonymous More than 1 year ago
Anonymous More than 1 year ago