Indeed, for the last fifty years, most popular and scholarly works have agreed that prehistoric warfare was rare, harmless, unimportant, and, like smallpox, a disease of civilized societies alone. Prehistoric warfare, according to this view, was little more than a ritualized game, where casualties were limited and the effects of aggression relatively mild. Lawrence Keeley's groundbreaking War Before Civilization offers a devastating rebuttal to such comfortable myths and debunks the notion that warfare was introduced to primitive societies through contact with civilization (an idea he denounces as the pacification of the past). Building on much fascinating archeological and historical research and offering an astute comparison of warfare in civilized and prehistoric societies, from modern European states to the Plains Indians of North America, War Before Civilization convincingly demonstrates that prehistoric warfare was in fact more deadly, more frequent, and more ruthless than modern war. To support this point, Keeley provides a wide-ranging look at warfare and brutality in the prehistoric world. He reveals, for instance, that prehistorical tactics favoring raids and ambushes, as opposed to formal battles, often yielded a high death-rate; that adult males falling into the hands of their enemies were almost universally killed; and that surprise raids seldom spared even women and children. Keeley cites evidence of ancient massacres in many areas of the world, including the discovery in South Dakota of a prehistoric mass grave containing the remains of over 500 scalped and mutilated men, women, and children (a slaughter that took place a century and a half before the arrival of Columbus). In addition, Keeley surveys the prevalence of looting, destruction, and trophy-taking in all kinds of warfare and again finds little moral distinction between ancient warriors and civilized armies. Finally, and perhaps most controversially, he examines the evidence of cannibalism among some preliterate peoples. Keeley is a seasoned writer and his book is packed with vivid, eye-opening details (for instance, that the homicide rate of prehistoric Illinois villagers may have exceeded that of the modern United States by some 70 times). But he also goes beyond grisly facts to address the larger moral and philosophical issues raised by his work. What are the causes of war? Are human beings inherently violent? How can we ensure peace in our own time? Challenging some of our most dearly held beliefs, Keeley's conclusions are bound to stir controversy.

    How does Jane Goodall’s relationship with her dog Rusty inform her thinking about our relationship to other species? Which time and place would Jared Diamond most prefer to live in, in light of his work on the role of chance in history? What does driving a sports car have to do with Steven Weinberg’s quest for the “theory of everything”? Physicist and journalist Stefan Klein’s intimate conversations with nineteen of the world’s best-known scientists (including three Nobel Laureates) let us listen in as they talk about their paradigm-changing work—and how it is deeply rooted in their daily lives. • Cosmologist Martin Rees on the beginning and end of the world • Evolutionary biologist Richard Dawkins on egoism and selflessness • Neuroscientist V. S. Ramachandran on consciousness • Molecular biologist Elizabeth Blackburn on aging • Philosopher Peter Singer on morality • Physician and social scientist Nicholas Christakis on human relationships • Biochemist Craig Venter on the human genome • Chemist and poet Roald Hoffmann on beauty

    Applying the same objective criteria to legal and illegal substances, an argument is made that legality is not a clear measure for harm. Tackling a variety of questions, such as Which is more harmful—Ecstasy or alcohol? Can addiction be cured? and Does the "War on Drugs" have serious unintended effects that can hurt children?, this analysis equips readers with the ability to make educated decisions regarding drugs both personally and in their communities. Broadening the scope of the discussion, a framework is explored for formulating national drug policies that will minimize a myriad of harms—social, medical, criminal, financial, and environmental.

    Rick Strassman conducted US DEA-approved clinical research at the University of New Mexico in which he injected 60 volunteers with DMT, one of the most powerful psychedelics known. His detailed account of those sessions is an inquiry into the nature of the human mind and the therapeutic potential of psychedelics. DMT, a plant-derived chemical that is also manufactured by the human brain, consistently produced near-death and mystical experiences. Many volunteers reported convincing encounters with intelligent nonhuman presences, especially "aliens." Nearly all felt that the sessions were among the most profound experiences of their lives.Strassman's research connects DMT with the pineal gland, considered by Hindus to be the site of the seventh chakra and by René Descartes to be the seat of the soul. DMT: The Spirit Molecule makes the case that DMT, naturally released by the pineal gland, facilitates the soul's movement in and out of the body and is an integral part of the birth and death experiences, as well as the highest states of meditation and even sexual transcendence. Strassman also believes that alien abduction experiences are brought on by accidental releases of DMT. If used wisely, DMT could trigger a period of remarkable progress in the scientific exploration of the most mystical regions of the human mind and soul.

    Technology, she writes, catalyzes changes not only in what we do but in how we think. First published in 1984, The Second Self is still essential reading as a primer in the psychology of computation. This twentieth anniversary edition allows us to reconsider two decades of computer culture--to (re)experience what was and is most novel in our new media culture and to view our own contemporary relationship with technology with fresh eyes. Turkle frames this classic work with a new introduction, a new epilogue, and extensive notes added to the original text.Turkle talks to children, college students, engineers, AI scientists, hackers, and personal computer owners--people confronting machines that seem to think and at the same time suggest a new way for us to think--about human thought, emotion, memory, and understanding. Her interviews reveal that we experience computers as being on the border between inanimate and animate, as both an extension of the self and part of the external world. Their special place betwixt and between traditional categories is part of what makes them compelling and evocative. (In the introduction to this edition, Turkle quotes a PDA user as saying, When my Palm crashed, it was like a death. I thought I had lost my mind.) Why we think of the workings of a machine in psychological terms--how this happens, and what it means for all of us--is the ever more timely subject of The Second Self.

    After the horrors of the Nazi regime in WWII, the mainstream scientific world turned its back on eugenics and the study of racial difference. But a worldwide network of eugenicists founded journals and funded research, providing the kind of shoddy studies that were ultimately cited in Richard Hernstein's and Charles Murray's 1994 title, The Bell Curve, which purported to show differences in intelligence among races.Whether you think of racist science as bad science, evil science, alt-right science, or pseudoscience, why would any contemporary scientist imagine that gross inequality is a fact of nature, rather than of political history? Angela Saini's Superior connects the dots, laying bare the history, continuity, and connections of modern racist science, some more subtle than you might think.

    And yet, we are the safest and healthiest humans in history. Irrational fear seems to be taking over, often with tragic results. For example, in the months after 9/11, when people decided to drive instead of fly—believing they were avoiding risk—road deaths rose by more than 1,500. In this fascinating, lucid, and thoroughly entertaining examination of how humans process risk, journalist Dan Gardner had the exclusive cooperation of Paul Slovic, the world renowned risk-science pioneer, as he reveals how our hunter gatherer brains struggle to make sense of a world utterly unlike the one that made them. Filled with illuminating real world examples, interviews with experts, and fast-paced, lean storytelling, The Science of Fear shows why it is truer than ever that the worst thing we have to fear is fear itself.

    And yet, this extremely common human experience is so poorly understood. What are we to make of this time-honored taboo—universally forbidden yet universally practiced? Why do people cheat—even those in happy marriages? Why does an affair hurt so much? When we say infidelity, what exactly do we mean? Do our romantic expectations of marriage set us up for betrayal? Is there such a thing as an affair-proof marriage? Is it possible to love more than one person at once? Can an affair ever help a marriage? Perel weaves real-life case stories with incisive psychological and cultural analysis in this fast-paced and compelling book.For the past ten years, Perel has traveled the globe and worked with hundreds of couples who have grappled with infidelity. Betrayal hurts, she writes, but it can be healed. An affair can even be the doorway to a new marriage—with the same person. With the right approach, couples can grow and learn from these tumultuous experiences, together or apart.Affairs, she argues, have a lot to teach us about modern relationships—what we expect, what we think we want, and what we feel entitled to. They offer a unique window into our personal and cultural attitudes about love, lust, and commitment. Through examining illicit love from multiple angles, Perel invites readers into an honest, enlightened, and entertaining exploration of modern marriage in its many variations.Fiercely intelligent, The State of Affairs provides a daring framework for understanding the intricacies of love and desire. As Perel observes, “Love is messy; infidelity more so. But it is also a window, like no other, into the crevices of the human heart.”

    As Dr. Kent Kiehl shows, psychopaths can be identified by a checklist of symptoms that includes pathological lying; lack of empathy, guilt, and remorse; grandiose sense of self-worth; manipulation; and failure to accept one’s actions. But why do psychopaths behave the way they do? Is it the result of their environment— how they were raised—or is there a genetic compo­nent to their lack of conscience? This is the question Kiehl, a protégé of famed psychopath researcher Dr. Robert Hare, was deter­mined to answer as he began his career twenty years ago. To aid in his quest to unravel the psy­chopathic mind, Kiehl created the first mobile functional MRI scanner to study psychopaths in prison populations. The brains of more than five hundred psychopaths and three thousand other offenders have been scanned by Kiehl’s labora­tory—the world’s largest forensic neuroscience repository of its kind. Over the course of The Psy­chopath Whisperer, we follow the scientific bread crumbs that Kiehl uncovered to show that the key brain structures that correspond with emotional engagement and reactions are diminished in psy­chopaths, offering new clues to how to predict and treat the disorder. In The Psychopath Whisperer, Kiehl describes in fascinating detail his years working with psy­chopaths and studying their thought processes— from the remorseless serial killers he meets with behind bars to children whose behavior and per­sonality traits exhibit the early warning signs of psychopathy. Less than 1 percent of the general population meets the criteria for psychopathy. But psycho­paths account for a vastly outsized proportion of violent crimes. And as Kiehl shows, many who aren’t psychopaths exhibit some of the behaviors and traits associated with the condition. What do you do if you discover your roommate, or boss, or the person you are dating has traits that define a psy­chopath? And what does having a diminished limbic region of the brain mean for how the legal system approaches crimes committed by psychopaths? A compelling narrative of cutting-edge science, The Psychopath Whisperer will open your eyes on a fascinating but little understood world, with startling implications for society, the law, and our personal lives.

    In the past, discoveries often had to wait for the rise of the next generation to see questions in a new light and let go of old truisms. Today, in a world that is defined by a rapid rate of change, staying on the cutting edge has as much to do with shedding outdated notions as adopting new ones. In this spirit, John Brockman, publisher of the online salon Edge.org ("the world's smartest website"—The Guardian), asked 175 of the world's most influential scientists, economists, artists, and philosophers: What scientific idea is ready for retirement?Jared Diamond explores the diverse ways that new ideas emerge * Nassim Nicholas Taleb takes down the standard deviation * Richard Thaler and novelist Ian McEwan reveal the usefulness of "bad" ideas * Steven Pinker dismantles the working theory of human behavior * Richard Dawkins renounces essentialism * Sherry Turkle reevaluates our expectations of artificial intelligence * Physicist Andrei Linde suggests that our universe and its laws may not be as unique as we think * Martin Rees explains why scientific understanding is a limitless goal * Alan Guth rethinks the origins of the universe * Sam Harris argues that our definition of science is too narrow * Nobel Prize winner Frank Wilczek disputes the division between mind and matter * Lawrence Krauss challenges the notion that the laws of physics were preordained * plus contributions from Daniel Goleman, Mihaly Csikszentmihalyi, Nicholas Carr, Rebecca Newberger Goldstein, Matt Ridley, Stewart Brand, Sean Carroll, Daniel C. Dennett, Helen Fisher, Douglas Rushkoff, Lee Smolin, Kevin Kelly, Freeman Dyson, and others.

    Moffett draws on findings in psychology, sociology and anthropology to explain the social adaptations that bind societies. He explores how the tension between identity and anonymity defines how societies develop, function, and fail.

    Mythologized. Controversial.A Harvard evolutionary biologist debunks the myths and cultural stereotypes surrounding testosterone and reveals its far-reaching effects on gender and sexuality, sports, relationships, and many more aspects of our everyday lives.The biological source of virility and masculinity has inspired fascination, investigation, and controversy since antiquity. From the eunuchs in the royal courts of ancient China to the booming market for “elixirs” of youth in nineteenth-century Europe, humans have been obsessed with identifying and manipulating what we now know as testosterone. And the trends show no signs of slowing down—the modern market for testosterone supplements is booming. Thanks to this history and the methods of modern science, today we have a rich body of research about testosterone’s effects in both men and women.The science is clear: testosterone is a major, invisible player in our relationships, sex lives, athletic abilities, childhood play, gender transitions, parenting roles, violent crime, and so much more. But there is still a lot of pushback to the idea that it does, in fact, cause sex differences and significantly influence behavior.Carole Hooven argues in T that acknowledging testosterone as a potent force in society doesn’t reinforce stifling gender norms or patriarchal values. Testosterone and evolution work together to produce a huge variety of human behavior, and that includes a multitude of ways to be masculine or feminine. Understanding the science sheds light on how we work and relate to one another, how we express anger and love, and how we can fight bias and problematic behavior to build a more fair society.

    But as scientists break open the mind’s black box with the latest tools of neuroscience, they’re discovering that this is not how the mind works. Our best decisions are a finely tuned blend of both feeling and reason—and the precise mix depends on the situation. When buying a house, for example, it’s best to let our unconscious mull over the many variables. But when we’re picking a stock, intuition often leads us astray. The trick is to determine when to use the different parts of the brain, and to do this, we need to think harder (and smarter) about how we think.Jonah Lehrer arms us with the tools we need, drawing on cutting-edge research as well as the real-world experiences of a wide range of “deciders”—from airplane pilots and hedge fund investors to serial killers and poker players.Lehrer shows how people are taking advantage of the new science to make better television shows, win more football games, and improve military intelligence. His goal is to answer two questions that are of interest to just about anyone, from CEOs to firefighters: How does the human mind make decisions? And how can we make those decisions better?

    Sleep patterns may be the most obvious manifestation of the highly individualized biological clocks we inherit, but these clocks also regulate bodily functions from digestion to hormone levels to cognition. Living at odds with our internal timepieces, Till Roenneberg shows, can make us chronically sleep deprived and more likely to smoke, gain weight, feel depressed, fall ill, and fail geometry. By understanding and respecting our internal time, we can live better.Internal Time combines storytelling with accessible science tutorials to explain how our internal clocks work—for example, why morning classes are so unpopular and why “lazy” adolescents are wise to avoid them. We learn why the constant twilight of our largely indoor lives makes us dependent on alarm clocks and tired, and why social demands and work schedules lead to a social jet lag that compromises our daily functioning.Many of the factors that make us early or late “chronotypes” are beyond our control, but that doesn’t make us powerless. Roenneberg recommends that the best way to sync our internal time with our external environment and feel better is to get more sunlight. Such simple steps as cycling to work and eating breakfast outside may be the tickets to a good night’s sleep, better overall health, and less grouchiness in the morning.[Description taken from publisher's web site.]

    We pride ourselves on our ability to multitask--read work email, reply to a text, check Facebook, watch a video clip. Talk on the phone, send a text, drive a car. Enjoy family dinner with a glowing smartphone next to our plates. We can do it all, 24/7! Never mind the errors in the email, the near-miss on the road, and the unheard conversation at the table. In The Distracted Mind, Adam Gazzaley and Larry Rosen--a neuroscientist and a psychologist--explain why our brains aren't built for multitasking, and suggest better ways to live in a high-tech world without giving up our modern technology.The authors explain that our brains are limited in their ability to pay attention. We don't really multitask but rather switch rapidly between tasks. Distractions and interruptions, often technology-related--referred to by the authors as "interference"--collide with our goal-setting abilities. We want to finish this paper/spreadsheet/sentence, but our phone signals an incoming message and we drop everything. Even without an alert, we decide that we "must" check in on social media immediately.Gazzaley and Rosen offer practical strategies, backed by science, to fight distraction. We can change our brains with meditation, video games, and physical exercise; we can change our behavior by planning our accessibility and recognizing our anxiety about being out of touch even briefly. They don't suggest that we give up our devices, but that we use them in a more balanced way.