Most of the time this math works quietly behind the scenes . . . until it doesn't. All sorts of seemingly innocuous mathematical mistakes can have significant consequences.Math is easy to ignore until a misplaced decimal point upends the stock market, a unit conversion error causes a plane to crash, or someone divides by zero and stalls a battleship in the middle of the ocean.Exploring and explaining a litany of glitches, near misses, and mathematical mishaps involving the internet, big data, elections, street signs, lotteries, the Roman Empire, and an Olympic team, Matt Parker uncovers the bizarre ways math trips us up, and what this reveals about its essential place in our world. Getting it wrong has never been more fun.

    The job: to delve into the psyche of convicted men and women to try to understand what lies behind their often brutal actions. Follow in the footsteps of Kerry Daynes, one of the most sought-after forensic psychologists in the business and consultant on major police investigations. Kerry's job has taken her to the cells of maximum-security prisons, police interview rooms, the wards of secure hospitals and the witness box of the court room. Her work has helped solve a cold case, convict the guilty and prevent a vicious attack. Spending every moment of your life staring into the darker side of life comes with a price. Kerry's frank memoir gives an unforgettable insight into the personal and professional dangers in store for a female psychologist working with some of the most disturbing men and women.

    This staggering amount of information—unprecedented in history—can tell us a great deal about who we are—the fears, desires, and behaviors that drive us, and the conscious and unconscious decisions we make. From the profound to the mundane, we can gain astonishing knowledge about the human psyche that less than twenty years ago, seemed unfathomable.Everybody Lies offers fascinating, surprising, and sometimes laugh-out-loud insights into everything from economics to ethics to sports to race to sex, gender and more, all drawn from the world of big data. What percentage of white voters didn’t vote for Barack Obama because he’s black? Does where you go to school effect how successful you are in life? Do parents secretly favor boy children over girls? Do violent films affect the crime rate? Can you beat the stock market? How regularly do we lie about our sex lives and who’s more self-conscious about sex, men or women?Investigating these questions and a host of others, Seth Stephens-Davidowitz offers revelations that can help us understand ourselves and our lives better. Drawing on studies and experiments on how we really live and think, he demonstrates in fascinating and often funny ways the extent to which all the world is indeed a lab. With conclusions ranging from strange-but-true to thought-provoking to disturbing, he explores the power of this digital truth serum and its deeper potential—revealing biases deeply embedded within us, information we can use to change our culture, and the questions we’re afraid to ask that might be essential to our health—both emotional and physical. All of us are touched by big data everyday, and its influence is multiplying. Everybody Lies challenges us to think differently about how we see it and the world.

    Jen Gunter now delivers the definitive book on vaginal health, answering the questions you've always had but were afraid to ask--or couldn't find the right answers to. She has been called Twitter's resident gynecologist, the Internet's OB/GYN, and one of the fiercest advocates for women's health...and she's here to give you the straight talk on the topics she knows best.Does eating sugar cause yeast infections? Does pubic hair have a function? Should you have a vulvovaginal care regimen?Will your vagina shrivel up if you go without sex?What's the truth about the HPV vaccine?So many important questions, so much convincing, confusing, contradictory misinformation! In this age of click bait, pseudoscience, and celebrity-endorsed products, it's easy to be overwhelmed--whether it's websites, advice from well-meaning friends, uneducated partners, and even healthcare providers. So how do you separate facts from fiction? OB-GYN Jen Gunter, an expert on women's health--and the internet's most popular go-to doc--comes to the rescue with a book that debunks the myths and educates and empowers women. From reproductive health to the impact of antibiotics and probiotics, and the latest trends, including vaginal steaming, vaginal marijuana products, and jade eggs, Gunter takes us on a factual, fun-filled journey. Discover the truth about:- The vaginal microbiome - Genital hygiene, lubricants, and hormone myths and fallacies - How diet impacts vaginal health - Stem cells and the vagina - Cosmetic vaginal surgery - What changes to expect during pregnancy, after childbirth, and through menopause - How medicine fails women by dismissing symptomsPlus: - Thongs vs. lace: the best underwear for vaginal health - How to select a tampon - The full glory of the clitoris and the myth of the G Spot... And so much more. Whether you're a twenty-six-year-old worried that her labia are "uncool" or a sixty-six-year-old dealing with painful sex, this comprehensive guide is sure to become a lifelong trusted resource.

    Yet brain scientists have uncovered details every business leader, parent, and teacher should know—like the need for physical activity to get your brain working its best.How do we learn? What exactly do sleep and stress do to our brains? Why is multi-tasking a myth? Why is it so easy to forget—and so important to repeat new knowledge? Is it true that men and women have different brains?In Brain Rules, Dr. John Medina, a molecular biologist, shares his lifelong interest in how the brain sciences might influence the way we teach our children and the way we work. In each chapter, he describes a brain rule—what scientists know for sure about how our brains work—and then offers transformative ideas for our daily lives.Medina’s fascinating stories and infectious sense of humor breathe life into brain science. You’ll learn why Michael Jordan was no good at baseball. You’ll peer over a surgeon’s shoulder as he proves that most of us have a Jennifer Aniston neuron. You’ll meet a boy who has an amazing memory for music but can’t tie his own shoes.You will discover how:Every brain is wired differentlyExercise improves cognitionWe are designed to never stop learning and exploringMemories are volatileSleep is powerfully linked with the ability to learnVision trumps all of the other sensesStress changes the way we learnIn the end, you’ll understand how your brain really works—and how to get the most out of it.

    These three Great Untruths are part of a larger philosophy that sees young people as fragile creatures who must be protected and supervised by adults. But despite the good intentions of the adults who impart them, the Great Untruths are harming kids by teaching them the opposite of ancient wisdom and the opposite of modern psychological findings on grit, growth, and antifragility. The result is rising rates of depression and anxiety, along with endless stories of college campuses torn apart by moralistic divisions and mutual recriminations. This is a book about how we got here. First Amendment expert Greg Lukianoff and social psychologist Jonathan Haidt take us on a tour of the social trends stretching back to the 1980s that have produced the confusion and conflict on campus today, including the loss of unsupervised play time and the birth of social media, all during a time of rising political polarization. This is a book about how to fix the mess. The culture of “safety” and its intolerance of opposing viewpoints has left many young people anxious and unprepared for adult life, with devastating consequences for them, for their parents, for the companies that will soon hire them, and for a democracy that is already pushed to the brink of violence over its growing political divisions. Lukianoff and Haidt offer a comprehensive set of reforms that will strengthen young people and institutions, allowing us all to reap the benefits of diversity, including viewpoint diversity. This is a book for anyone who is confused by what’s happening on college campuses today, or has children, or is concerned about the growing inability of Americans to live and work and cooperate across party lines.

    In Papua New Guinea, a primitive tribe is nearly obliterated by a sickness whose chief symptom is uncontrollable laughter. Across Europe, millions of sheep rub their fleeces raw before collapsing. In England, cows attack their owners in the milking parlors, while in the American West, thousands of deer starve to death in fields full of grass.What these strange conditions–including fatal familial insomnia, kuru, scrapie, and mad cow disease–share is their cause: prions. Prions are ordinary proteins that sometimes go wrong, resulting in neurological illnesses that are always fatal. Even more mysterious and frightening, prions are almost impossible to destroy because they are not alive and have no DNA–and the diseases they bring are now spreading around the world.In The Family That Couldn’t Sleep, essayist and journalist D. T. Max tells the spellbinding story of the prion’s hidden past and deadly future

    But we don't know much about timing itself. Our lives are a never-ending stream of "when" decisions: when to start a business, schedule a class, get serious about a person. Yet we make those decisions based on intuition and guesswork.Timing, it's often assumed, is an art. In When: The Scientific Secrets of Perfect Timing, Pink shows that timing is really a science.Drawing on a rich trove of research from psychology, biology, and economics, Pink reveals how best to live, work, and succeed. How can we use the hidden patterns of the day to build the ideal schedule? Why do certain breaks dramatically improve student test scores? How can we turn a stumbling beginning into a fresh start? Why should we avoid going to the hospital in the afternoon? Why is singing in time with other people as good for you as exercise? And what is the ideal time to quit a job, switch careers, or get married?

    So little, in fact, that scientists and philosophers have, for centuries, been obsessed with what has become known as the “eel question”: Where do eels come from? What are they? Are they fish or some other kind of creature altogether? Even today, in an age of advanced science, no one has ever seen eels mating or giving birth, and we still don’t understand what drives them, after living for decades in freshwater, to swim great distances back to the ocean at the end of their lives. They remain a mystery.Drawing on a breadth of research about eels in literature, history, and modern marine biology, as well as his own experience fishing for eels with his father, Patrik Svensson writes a book about this unusual animal. In The Book of Eels, we meet renowned historical thinkers, from Aristotle to Sigmund Freud to Rachel Carson, for whom the eel was a singular obsession. And we meet the scientists who spearheaded the search for the eel’s point of origin, including Danish marine biologist Johannes Schmidt, who led research efforts in the early twentieth century, catching thousands upon thousands of eels, in the hopes of proving their birthing grounds in the Sargasso Sea.Blending memoir and nature writing, Svensson’s journey to understand the eel becomes an exploration of the human condition that delves into overarching issues about our roots and destiny, both as humans and as animals, and, ultimately, how to handle the biggest question of all: death.

    Wade have on violent crime? Freakonomics will literally redefine the way we view the modern world.These may not sound like typical questions for an economist to ask. But Steven D. Levitt is not a typical economist. He is a much heralded scholar who studies the stuff and riddles of everyday life -- from cheating and crime to sports and child rearing -- and whose conclusions regularly turn the conventional wisdom on its head. He usually begins with a mountain of data and a simple, unasked question. Some of these questions concern life-and-death issues; others have an admittedly freakish quality. Thus the new field of study contained in this book: freakonomics.Through forceful storytelling and wry insight, Levitt and co-author Stephen J. Dubner show that economics is, at root, the study of incentives -- how people get what they want, or need, especially when other people want or need the same thing. In Freakonomics, they set out to explore the hidden side of ... well, everything. The inner workings of a crack gang. The truth about real-estate agents. The myths of campaign finance. The telltale marks of a cheating schoolteacher. The secrets of the Ku Klux Klan.What unites all these stories is a belief that the modern world, despite a surfeit of obfuscation, complication, and downright deceit, is not impenetrable, is not unknowable, and -- if the right questions are asked -- is even more intriguing than we think. All it takes is a new way of looking. Steven Levitt, through devilishly clever and clear-eyed thinking, shows how to see through all the clutter.Freakonomics establishes this unconventional premise: If morality represents how we would like the world to work, then economics represents how it actually does work. It is true that readers of this book will be armed with enough riddles and stories to last a thousand cocktail parties. But Freakonomics can provide more than that. It will literally redefine the way we view the modern world.(front flap)

    She takes us by her side down hospital corridors to visit the wards and meet her unforgettable patients.In the neonatal unit, premature babies fight for their lives, hovering at the very edge of survival, like tiny Emmanuel, wrapped up in a sandwich bag. On the cancer wards, the nurses administer chemotherapy and, long after the medicine stops working, something more important--which Watson learns to recognize when her own father is dying of cancer. In the pediatric intensive care unit, the nurses wash the hair of a little girl to remove the smell of smoke from the house fire. The emergency room is overcrowded as ever, with waves of alcohol and drug addicted patients as well as patients like Betty, a widow suffering chest pain, frail and alone. And the stories of the geriatric ward--Gladys and older patients like her--show the plight of the most vulnerable members of our society.

    Evidence has shown that creative geniuses are not attached to one identity, but constantly willing to rethink their stances and that leaders who admit they don't know something and seek critical feedback lead more productive and innovative teams.New evidence shows us that as a mindset and a skilllset, rethinking can be taught and Grant explains how to develop the necessary qualities to do it. Section 1 explores why we struggle to think again and how we can learn to do it as individuals, arguing that 'grit' alone can actually be counterproductive. Section 2 discusses how we can help others think again through learning about 'argument literacy'. And the final section 3 looks at how schools, businesses and governments fall short in building cultures that encourage rethinking.In the end, learning to rethink may be the secret skill to give you the edge in a world changing faster than ever.

    Sybil became both a pop phenomenon and a revolutionary force in the psychotherapy industry. The book rocketed multiple personality disorder (MPD) into public consciousness and played a major role in having the diagnosis added to the psychiatric bible, Diagnostic and Statistical Manual of Mental Disorders. But what do we really know about how Sybil came to be? In her news-breaking book Sybil Exposed, journalist Debbie Nathan gives proof that the allegedly true story was largely fabricated. The actual identity of Sybil (Shirley Mason) has been available for some years, as has the idea that the book might have been exaggerated. But in Sybil Exposed, Nathan reveals what really powered the legend: a trio of women—the willing patient, her ambitious shrink, and the imaginative journalist who spun their story into bestseller gold. From horrendously irresponsible therapeutic practices—Sybil’s psychiatrist often brought an electroshock machine to Sybil’s apartment and climbed into bed with her while administering the treatment— to calculated business decisions (under an entity they named Sybil, Inc., the women signed a contract designating a three-way split of profits from the book and its spin-offs, including board games, tee shirts, and dolls), the story Nathan unfurls is full of over-the-top behavior. Sybil’s psychiatrist, driven by undisciplined idealism and galloping professional ambition, subjected the young woman to years of antipsychotics, psychedelics, uppers, and downers, including an untold number of injections with Pentothal, once known as “truth serum” but now widely recognized to provoke fantasies. It was during these “treatments” that Sybil produced rambling, garbled, and probably “false-memory”–based narratives of the hideous child abuse that her psychiatrist said caused her MPD. Sybil Exposed uses investigative journalism to tell a fascinating tale that reads like fiction but is fact. Nathan has followed an enormous trail of papers, records, photos, and tapes to unearth the lives and passions of these three women. The Sybil archive became available to the public only recently, and Nathan examined all of it and provides proof that the story was an elaborate fraud—albeit one that the perpetrators may have half-believed. Before Sybil was published, there had been fewer than 200 known cases of MPD; within just a few years after, more than 40,000 people would be diagnosed with it. Set across the twentieth century and rooted in a time when few professional roles were available to women, this is a story of corrosive sexism, unchecked ambition, and shaky theories of psychoanalysis exuberantly and drastically practiced. It is the story of how one modest young woman’s life turned psychiatry on its head and radically changed the course of therapy, and our culture, as well.

    Confusing messages from health authorities and ineffective treatments have left many people desperate for reliable solutions. An enormous alternative industry is filling the void, selling products that are often of questionable safety and totally unknown effectiveness.In Clean, doctor and journalist James Hamblin explores how we got here, examining the science and culture of how we care for our skin today. He talks to dermatologists, microbiologists, allergists, immunologists, aestheticians, bar-soap enthusiasts, venture capitalists, Amish people, theologians, and straight-up scam artists, trying to figure out what it really means to be clean. He even experiments with giving up showers entirely, and discovers that he is not alone.Along the way he realizes that most of our standards of cleanliness are less related to health than most people think. A major part of the picture has been missing: a little-known ecosystem known as the skin microbiome--the trillions of microbes that live on our skin and in our pores. These microbes are not dangerous; they're more like an outer layer of skin that no one knew we had, and they influence everything from acne, eczema, and dry skin to how we smell. The new goal of skin care will be to cultivate a healthy biome--and to embrace the meaning of "clean" in the natural sense. This can mean doing much less, saving time, money, energy, water, and plastic bottles in the process.Lucid, accessible, and deeply researched, Clean explores the ongoing, radical change in the way we think about our skin, introducing readers to the emerging science that will be at the forefront of health and wellness conversations in coming years.

    Unveiling here the kind of cutting-edge research that has made them giants in their fields, Daniel Goleman and Richard Davidson show us the truth about what meditation can really do for us, as well as exactly how to get the most out of it.Sweeping away common misconceptions and neuromythology to open readers' eyes to the ways data has been distorted to sell mind-training methods, the authors demonstrate that beyond the pleasant states mental exercises can produce, the real payoffs are the lasting personality traits that can result. But short daily doses will not get us to the highest level of lasting positive change--even if we continue for years--without specific additions. More than sheer hours, we need smart practice, including crucial ingredients such as targeted feedback from a master teacher and a more spacious, less attached view of the self, all of which are missing in widespread versions of mind training. The authors also reveal the latest data from Davidson's own lab that point to a new methodology for developing a broader array of mind-training methods with larger implications for how we can derive the greatest benefits from the practice.Exciting, compelling, and grounded in new research, this is one of those rare books that has the power to change us at the deepest level.