The set includes thirty-one 30-minute MCAT practice exams with answers and explanations and more than 1,600 MCAT questions.

    And sugar is at the root of these, and other, critical society-wide, health-related problems. With his signature command of both science and straight talk, Gary Taubes delves into Americans' history with sugar: its uses as a preservative, as an additive in cigarettes, the contemporary overuse of high-fructose corn syrup. He explains what research has shown about our addiction to sweets. He clarifies the arguments against sugar, corrects misconceptions about the relationship between sugar and weight loss; and provides the perspective necessary to make informed decisions about sugar as individuals and as a society.

    In college, I ran against Kenyans, and wondered whether endurance genes might have traveled with them from East Africa. At the same time, I began to notice that a training group on my team could consist of five men who run next to one another, stride for stride, day after day, and nonetheless turn out five entirely different runners. How could this be?We all knew a star athlete in high school. The one who made it look so easy. He was the starting quarterback and shortstop; she was the all-state point guard and high-jumper. Naturals. Or were they?The debate is as old as physical competition. Are stars like Usain Bolt, Michael Phelps, and Serena Williams genetic freaks put on Earth to dominate their respective sports? Or are they simply normal people who overcame their biological limits through sheer force of will and obsessive training?The truth is far messier than a simple dichotomy between nature and nurture. In the decade since the sequencing of the human genome, researchers have slowly begun to uncover how the relationship between biological endowments and a competitor’s training environment affects athleticism. Sports scientists have gradually entered the era of modern genetic research.In this controversial and engaging exploration of athletic success, Sports Illustrated senior writer David Epstein tackles the great nature vs. nurture debate and traces how far science has come in solving this great riddle. He investigates the so-called 10,000-hour rule to uncover whether rigorous and consistent practice from a young age is the only route to athletic excellence.Along the way, Epstein dispels many of our perceptions about why top athletes excel. He shows why some skills that we assume are innate, like the bullet-fast reactions of a baseball or cricket batter, are not, and why other characteristics that we assume are entirely voluntary, like an athlete’s will to train, might in fact have important genetic components.This subject necessarily involves digging deep into sensitive topics like race and gender. Epstein explores controversial questions such as:Are black athletes genetically predetermined to dominate both sprinting and distance running, and are their abilities influenced by Africa’s geography?Are there genetic reasons to separate male and female athletes in competition?Should we test the genes of young children to determine if they are destined for stardom?Can genetic testing determine who is at risk of injury, brain damage, or even death on the field?Through on-the-ground reporting from below the equator and above the Arctic Circle, revealing conversations with leading scientists and Olympic champions, and interviews with athletes who have rare genetic mutations or physical traits, Epstein forces us to rethink the very nature of athleticism.

    But if we are supposedly evolution’s greatest creation, why do we have such bad knees? Why do we catch head colds so often—two hundred times more often than a dog does? How come our wrists have so many useless bones? Why is the vast majority of our genetic code pointless? And are we really supposed to swallow and breathe through the same narrow tube? Surely there’s been some kind of mistake. As professor of biology Nathan H. Lents explains in Human Errors, our evolutionary history is nothing if not a litany of mistakes, each more entertaining and enlightening than the last. The human body is one big pile of compromises. But that is also a testament to our greatness: as Lents shows, humans have so many design flaws precisely because we are very, very good at getting around them.   A rollicking, deeply informative tour of humans’ four billion year long evolutionary saga, Human Errors both celebrates our imperfections and offers an unconventional accounting of the cost of our success.

    The microbiota interacts with our bodies in a number of powerful ways; the Sonnenburgs argue that it determines in no small part whether we’re sick or healthy, fit or obese, sunny or moody. The microbiota has always been with us, and in fact has coevolved with humans, entwining its functions with ours so deeply, the Sonnenburgs show us, humans are really composite organisms having both microbial and human parts. But now, they argue, because of changes to diet, antibiotic over-use, and over-sterilization, our gut microbiota is facing a “mass extinction event,” which is causing our bodies to go haywire, and may be behind the mysterious spike in some of our most troubling modern afflictions, from food allergies to autism, cancer to depression. It doesn’t have to be this way.The Good Gut offers a new plan for health that focuses on how to nourish your microbiota, including recipes and a menu plan. In this groundbreaking work, the Sonnenburgs show how we can keep our microbiota off the endangered species list and how we can strengthen the community that inhabits our gut and thereby improve our own health. The answer is unique for each of us, and it changes as you age. In this important and timely investigation, the Sonnenburgs look at safe alternatives to antibiotics; dietary and lifestyle choices to encourage microbial health; the management of the aging microbiota; and the nourishment of your own individual microbiome. Caring for our gut microbes may be the most important health choice we can make.

    School Library Journal declared it "a standout concept book [that's] engaging, fun . . . and a favorite for storytimes or one-on-one settings." (App also available.)

    With plenty of engaging material, practice questions, and practical ideas, this updated edition contains everything your students need to succeed in Cambridge IGCSE biology.

    Giraffes have eyelashes. Sloths hang from trees for days at a time without going to the bathroom. These are just some of the insights featured in Life-Size Zoo. Acclaimed wildlife photographer Toyofumi Fukuda visited Japan's premier zoos to capture remarkably vivid and detailed close-up photographs of 21 animals, from pandas and meerkats to giraffes, rhinos, and elephants (adult and baby). Each photograph is accompanied by a profile including body length, weight, and natural habitat, as well as fun facts about the animal.

    In this virtuosic work of popular science, neuroscientist and best-selling author Dean Buonomano investigates the intricate relationship between the brain and time: What is time? Why does time seem to speed up or slow down? Is our sense that time flows an illusion? Buonomano presents his own influential theory of how the brain tells time, and he illuminates such concepts as free will, consciousness, spacetime, and relativity from the perspective of a neuroscientist. Drawing on physics, evolutionary biology, and philosophy, Your Brain Is a Time Machine reveals that the brain’s ultimate purpose may be to predict the future, and thus that your brain is a time machine.

    In 1856, when Louis Pasteur first began studying microbes in rotten sugarbeet juice, he put into motion a chain of events that saved France's wine industry, and revolutionized medicine and biology.

    Easy to read and easy to understand, Me and My Amazing Body helps children appreciate everything their amazing bodies can do.

    It is the repository of our deepest religious andartistic impulses, the organ whose steady functioning is understood, both literally and symbolically, asthe very life force itself. The Sublime Engine explores the profound sense of awe every person feels when they ponder the miracle encased within the ribs. In this lyrical history, a critically acclaimed novelist and a leading cardiologist—who happen to be brothers— draw upon history, science, religion, popular culture, and literature to illuminate all of the heart’s physical and figurative chambers. Divided into six sections, The Sublime Engine traces the heart’s sway over the human imagination from the time of the Egyptians and ancient Greece, through the Middle Ages and Renaissance, up to the modern era and beyond. More than just a work of scientific or cultural history, it is a biography of the single most important symbol of our humanity. Erudite, witty, and unexpected, The Sublime Engine makes the heart leap off the page.

    

    It’s so bound up with our deepest feelings that emotional trauma causes it to change shape.Practising cardiologist Sandeep Jauhar beautifully weaves his own experiences with the defining discoveries of the past to tell the story of our most vital organ. He looks at some of the pioneers who risked their careers and their patients’ lives to better understand the heart. People like Daniel Hale Williams, who performed the world’s first documented heart surgery, and Wilson Greatbatch, who accidentally invented the pacemaker.Amid gripping scenes from the operating theatre, Jauhar interweaves stories about the patients he’s treated with the moving tale of his family’s own history of heart problems, from his grandfather’s sudden death in India – an event that sparked his life-long obsession – to the ominous signs of how he himself might die.He also confronts the limits of medical technology and argues that future progress will be determined more by how we choose to live rather than by any device we invent.

    This iconoclastic, witty, and extremely readable book illuminates the deep background of our place in nature and asks us to think critically about what science is, and what passes for it, in modern society.