Far from preparing them for fulfilling relationships, viewing an endless stream of porn videos led to unexpected symptoms. Perhaps most surprisingly, for the first time in history erectile dysfunction was becoming a significant problem for young men. This led to one of the largest informal experiments in the history of science. Tens of thousands of people have tried abstaining from sexually stimulating material in a process they call ‘rebooting’. Many of them reported startling changes, from improved concentration and elevated mood to a greater capacity for real-life intimacy. Gary Wilson has listened to the stories of those who have tried giving up internet porn and related them to an account of how the reward system of the brain interacts with its environment. And now a growing body of research in neuroscience is confirming what these pioneers have discovered for themselves – internet pornography can be seriously addictive and damaging. In Your Brain on Porn Wilson provides a concise introduction to the phenomenon of internet porn addiction that draws on both first-person accounts and the findings of cognitive neuroscience. In a voice that is generous and humane, he also offers advice for those who want to stop using internet pornography. The publication of Your Brain on Porn is a landmark in our attempts to understand, and remain balanced in, a world where addiction is big business.

    Now, more than ever before, our country needs to see full legalization of medical/recreational marijuana and hemp. Any way you look at it, for whoever is using it, marijuana is a medicinal plant, in abundant supply. Every month and every year that goes by, we find out more positive things about it. Medicinal marijuana has been demonized through the years but obviously this plant has a great deal of positive attributes, and it’s also a renewable resource. Being a cash crop, marijuana is bad for the pharmaceutical industry. Is Big Pharma pressuring the government to continue to deny sick people access? If so, that’s truly a crime against American citizens. And as Ventura writes: “Our government won’t do the right thing and legalize marijuana unless we the people demand it, because there are so many people within our government on the payroll, all thanks to the War on Drugs." Jesse Ventura’s Marijuana Manifesto calls for an end to the War on Drugs. Just because something is illegal, that doesn’t mean it goes away, it just means that criminals run it. Legalizing marijuana and marijuana dispensaries will serve to rejuvenate our pathetic economy, and just might make people a little happier. Ventura’s book will show us all how we can take our country back.

    In this book you will see how commonly performed operations can be found to be useless or even harmful when properly evaluated. That these claims come from an experienced, practicing orthopedic surgeon who performs many of these operations himself, makes the unsettling argument particularly compelling. Of course no surgeon is recommending invasive surgery in bad faith, but Ian Harris argues that the evidence for the success for many common operations, including knee arthroscopies, back fusion or cardiac stenting, become current accepted practice without full examination of the evidence.

    Consciousness: A Very Short Introduction challenges readers to reconsider key concepts such as personality, free will, and the soul. How can a physical brain create our experience of the world? What creates our identity? Do we really have free will? Could consciousness itself be an illusion? Exciting new developments in brain science are opening up these debates, and the field has now expanded to include biologists, neuroscientists, psychologists, and philosophers. This book clarifies the potentially confusing arguments and clearly describes the major theories, with illustrations and lively cartoons to help explain the experiments. Topics include vision and attention, theories of self, experiments on action and awareness, altered states of consciousness, and the effects of brain damage and drugs. This lively, engaging, and authoritative book provides a clear overview of the subject that combines the perspectives of philosophy, psychology, and neuroscience--and serves as a much-needed launch pad for further exploration of this complicated and unsolved issue.About the Series: Combining authority with wit, accessibility, and style, Very Short Introductions offer an introduction to some of life's most interesting topics. Written by experts for the newcomer, they demonstrate the finest contemporary thinking about the central problems and issues in hundreds of key topics, from philosophy to Freud, quantum theory to Islam.

    Nicholas became Tsar at the age of 26. Though a conscientious man who was passionate in his devotion to his country, he was weak, sentimental, dogmatic and indecisive. Ironically he could have made an effective constitutional monarch, but these flaws rendered him fatally unsuited to be the sole ruler of a nation that was in the throes of painful modernisation. That he failed is not surprising, for many abler monarchs could not have succeeded. Rather to be wondered at is that he managed, for 23 years, to hold on to power despite the overwhelming force of circumstances. Though Nicholas was exasperating, he had many endearing qualities. A modern audience, aware - as contemporaries were not - of the private pressures under which he lived, can empathise with him and forgive some of his errors of judgement. To some readers he seems a fool, to others a monster, but many are touched by the story of a well-meaning man doing his best under impossible conditions. He is, in other words, a biographical subject that engages readers whatever their viewpoint. His family was of great importance to Nicholas. He and his wife, Alexandra, married for love and retained this affection to the end of their lives. His four daughters, all different and intriguing personalities, were beautiful and charming. His son, the family's - and the nation's - hope for the future, was disabled by an illness that had to be concealed from Russia and from the world. It was this circumstance that made possible the nefarious influence of Rasputin, which in turn hastened the end of the dynasty.This story has everything: romance and tragedy, grandeur and misery, human frailty and an international catastrophe that would not only bring down the Tsar but put an end to the glittering era of European monarchies.

    Yet, despite the astonishing discoveries of science, we still have only the vaguest idea of how the brain works. In The Idea of the Brain, scientist and historian Matthew Cobb traces how our conception of the brain has evolved over the centuries. Although it might seem to be a story of ever-increasing knowledge of biology, Cobb shows how our ideas about the brain have been shaped by each era's most significant technologies. Today we might think the brain is like a supercomputer. In the past, it has been compared to a telegraph, a telephone exchange, or some kind of hydraulic system. What will we think the brain is like tomorrow, when new technology arises? The result is an essential read for anyone interested in the complex processes that drive science and the forces that have shaped our marvelous brains.

    The most trusted sources in the auto industry have called its Model S the most advanced, safest and best-performing car ever built - and it doesn’t use a drop of gasoline. Tesla has changed the way the public perceives electric vehicles, and inspired the major automakers to revive their own dormant efforts to sell EVs. However, even amidst the avalanche of media coverage that followed the triumph of the Model S, few have grasped the true significance of what is happening. Tesla has redefined the automobile, sparked a new wave of innovation comparable to the internet and mobile computing revolutions, and unleashed forces that will transform not just the auto industry, but every aspect of society. The Tesla story is one part of an ongoing tide of change driven by the use of information technology to eliminate “friction” such as geographic distance, middlemen and outdated regulations. Tesla is simply applying the new order to the auto industry, but the automobile is such a pervasive influence in our lives that redefining how it is designed, built, driven and sold will have sweeping effects in unexpected areas. Just as Tesla built the Model S as an electric vehicle “from the ground up,” it has taken an outsider’s approach to the way it markets its cars. Its direct sales model has drawn legal challenges from entrenched auto dealers, who fear that their outdated business model will be destroyed. Its systems approach to the software and electronics in its cars has highlighted how far behind the technological times the major automakers are. It’s easy to see why readers find Tesla irresistible. CEO Elon Musk is a superstar entrepreneur, a “nauseatingly pro-US” immigrant and the leader of two other cutting-edge companies. Tesla dares to challenge the establishment behemoths and, so far at least, has handily beaten them at their own game. In this history of the 21st century’s most exciting startup, Charles Morris begins with a brief history of EVs and a biography of Tesla’s driving force, Elon Musk. He then details the history of the company, told in the words of the Silicon Valley entrepreneurs who made it happen. There are many fascinating stories here: Martin Eberhard’s realization that there were many like himself, who loved fast cars but wanted to help the environment and bring about the post-oil age; the freewheeling first days, reminiscent of the early internet era; the incredible ingenuity of the team who built the Roadster; Tesla’s near-death experience and miraculous resurrection; the spiteful split between the company’s larger-than-life leaders; the gloves-off battles with hostile media such as Top Gear and the New York Times; and the media’s ironic about-face when the magnificent Model S won the industry’s highest honors, and naysayers became cheerleaders overnight. And the story is just beginning: Tesla has breathtakingly ambitious plans for the future.This book was updated May 1, 2015 to include the latest on the Gigafactory and the D package.

    Our intellectual capacity, our introversion or extraversion, our vulnerability to mental illness, even whether we are a morning person - all of these aspects of our personality are profoundly shaped by our inherited DNA differences.In Blueprint, Robert Plomin, a pioneer in the field of behavioural genetics, draws on a lifetime's worth of research to make the case that DNA is the most important factor shaping who we are. Our families, schools and the environment around us are important, but they are not as influential as our genes. This is why, he argues, teachers and parents should accept children for who they are, rather than trying to mould them in certain directions. Even the environments we choose and the signal events that impact our lives, from divorce to addiction, are influenced by our genetic predispositions. Now, thanks to the DNA revolution, it is becoming possible to predict who we will become, at birth, from our DNA alone. As Plomin shows us, these developments have sweeping implications for how we think about parenting, education, and social mobility.A game-changing book by a leader in the field, Blueprint shows how the DNA present in the single cell with which we all begin our lives can impact our behaviour as adults.

    Hazen writes of how the co-evolution of the geosphere and biosphere—of rocks and living matter—has shaped our planet into the only one of its kind in the Solar System, if not the entire cosmos.With an astrobiologist’s imagination, a historian’s perspective, and a naturalist’s passion for the ground beneath our feet, Hazen explains how changes on an atomic level translate into dramatic shifts in Earth’s makeup over its 4.567 billion year existence. He calls upon a flurry of recent discoveries to portray our planet’s many iterations in vivid detail. Through his theory of “co-evolution,” we learn how reactions between organic molecules and rock crystals may have generated Earth’s first organisms, which in turn are responsible for more than two-thirds of the mineral varieties on the planet.The Story of Earth is also the story of the pioneering men and women behind the sciences. Readers will meet black-market meteorite hawkers of the Sahara Desert, the gun-toting Feds who guarded the Apollo missions’ lunar dust, and the World War II Navy officer whose super-pressurized “bomb”—recycled from military hardware—first simulated the molten rock of Earth’s mantle. As a mentor to a new generation of scientists, Hazen introduces the intrepid young explorers whose dispatches from Earth’s harshest landscapes will revolutionize geology.

    Humans: from the beginning will appeal to anybody who reads about these discoveries, is intrigued by them, and would like to know more about prehistory. Now brought fully up to date for 2015, Humans: from the beginning is a single-volume guide to the human past. Drawing upon expert literature and the latest multi-disciplinary research, this rigorous but accessible book traces the whole of the human story from the first apes to the first cities. The end product of five years of research, it has also been planned from the ground up to take advantage of the eBook format and ease access to visual matter, references and glossary items. Humans: from the beginning is written for the non-specialist, but it is sufficiently comprehensive in scope, rigorous in content, and well-referenced to serve as an ideal ‘one-stop’ text not only for undergraduate students of relevant disciplines, but also to postgraduates, researchers and other academics seeking to broaden their knowledge. This 32-chapter work presents an even-handed coverage of topics including: • How climate change has long played a pivotal role in our affairs and those of our ancestors. • How humans evolved from apes at a time when the apes were facing extinction. • Why the last common ancestor of humans and chimpanzees (our closest living relatives) might have been more like a human than a chimpanzee. • A possible Asian rather than African origin for the earliest humans. • Why the Neanderthals were not the dimwits of popular imagination. • How language and modern human behaviour evolved: an examination of theories including those of Robin Dunbar, Steven Mithen and Derek Bickerton. • How the small group of modern humans that eventually colonised the whole of the non-African world might have started from Arabia rather than Africa. • David Lewis-Williams’ theory that the cave art of Ice Age Europe was linked to a shamanistic belief system that might be rooted in the very architecture of the human brain. • Why the Neolithic transition from hunter-gathering to agriculture was a lengthy process, with many down sides. • Colin Renfrew’s still-controversial theory that the spread of farming communities in Neolithic times was responsible for the languages now spoken in many parts of the world. • How an ‘Urban Revolution’ replaced egalitarian farming communities with socially-stratified kingdoms and city-states in just a few millennia. • How the complex, technological societies of today have much in common with not only the earliest states but much earlier primate societies.

    

    A. Leo Lemay and P. M. Zall's definitive text. Louis P. Masur's introduction sets the work in its historical context. Masur also discusses America after Franklin and why the Autobiography has had such a tremendous impact on nineteenth and twentieth century society and culture. He prompts students to think critically about the text by raising fundamental issues, such as the inherent distortion that occurs in autobiography. Also included in this edition are six portraits of Franklin, questions for consideration, annotations to the text, a chronology, a bibliography, and an index.

    In the words of the very own Colombian narrator, the lineage of the griots and storytellers in markets and plazas is dealt and exalted, preserved and enriched; a lineage which is not doomed to spend one hundred years of solitude nor is it meant to suffer the curse of Babel. It’s an indispensable book for those who want to become initiated in the art of writing, as well as for those who wish to understand the deep mechanisms ruling that art.

    In this thrill-ride across millennia and continents, the complete history of the planet comes to life: from the Earth's fiery birth to its near-obliteration in the Triassic period, and from the first signs of human life to the tentative future of a world with a burgeoning population and a global warming crisis. Covering a wide range of topics including astrophysics, zoology, and sociology, and complete with maps and illustrations, What on Earth Happened? In Brief is the endlessly entertaining story of the planet, life, and people.

    There's a wonderful mix of science, history and wit, all in bite-sized chapters on a broad range of topics.Urgent and essential, Numbers Don't Lie inspires readers to interrogate what they take to be true in these significant times. Smil is on a mission to make facts matter, because after all, numbers may not lie, but which truth do they convey?'The best book to read to better understand our world. Once in a while a book comes along that helps us see our planet more clearly. By showing us numbers about science, health, green technology and more, Smil's book does just that. It should be on every bookshelf!' Linda Yueh, author of The Great Economists'He is rigorously numeric, using data to illuminate every topic he writes about. The word "polymath" was invented to describe people like him' Bill Gates 'Important' Mark Zuckerberg, on Energy 'One of the world's foremost thinkers on development history and a master of statistical analysis . . . The nerd's nerd' Guardian 'There is perhaps no other academic who paints pictures with numbers like Smil' Guardian 'In a world of specialized intellectuals, Smil is an ambitious and astonishing polymath who swings for fences . . . They're among the most data-heavy books you'll find, with a remarkable way of framing basic facts' Wired 'He's a slayer of bullshit' David Keith, Gordon McKay Professor of Applied Physics & Professor of Public Policy, Harvard UniversityVaclav Smil is Distinguished Professor Emeritus at the University of Manitoba. He is the author of over forty books on topics including energy, environmental and population change, food production and nutrition, technical innovation, risk assessment and public policy. No other living scientist has had more books (on a wide variety of topics) reviewed in Nature. A Fellow of the Royal Society of Canada, in 2010 he was named by Foreign Policy as one of the Top 100 Global Thinkers. This is his first book for a more general readership.