Risultati di "Scientific American" in Tutte le categorie

Chronic stress makes people sick. The fight-or-flight response activates our bodies to face immediate threats, but that stress system must turn off to allow organs to recover. Constant anxiety keeps the system active, and in this audiobook we examine the effects of ongoing stress and trauma on both body and mind as well as ways to arm ourselves against adversity by managing stress and building resilience.

In the digital age, information, both true and false, spreads faster than ever. The same technology that provides access to data across the globe can abet the warping of truth and normalization of lies. In this audiobook, we examine the intersection of truth, untruth, and technology, including how social media manipulates behavior, technologies such as deepfakes that spread misinformation, the bias inherent in algorithms, and more.

Sally Ride, the first American woman to go to space, once said that she didn’t set out to be a role model, but after her first flight, she realized that she was one. Like her, the 12 women scientists in this collection became unintentional heroes through perseverance and hard work, making great discoveries in all areas of science. From Vera Rubin’s examination of the internal dynamics of galaxies to Nobel Prize winner May-Britt Moser’s study of the brain’s GPS-like navigation system, Trailblazers highlights the achievements of women who became role models for us all.

Burning. Shooting. Stabbing. Sometimes the cause is unknown. Sometimes it begins as the result of an injury. Whatever form it takes, chronic pain often resists treatment. In this audiobook, we examine the latest advances in understanding the pathology of chronic pain and the efforts to find better, non-opioid treatment options, including electrical stimulation of nerves, venom from spiders and other creatures, and psychological interventions including virtual-reality therapy and acupuncture.

For more than a century, scientists across disciplines have investigated the workings of nature’s most complex organ. Findings from cutting-edge neuroscience are moving us closer to understanding processes like how we make decisions or navigate our environment. In this audiobook, we examine the latest research on cognition, how the brain gives rise to consciousness, and how we can improve mental health.

In the US, more than half of households have a pet - usually more than one. They’re usually considered members of the family, and some of us even call them our “furry children”. The strength of the human-pet bond tells us as much or more about ourselves as it does about our pets, and in this audiobook, we look at why dogs and cats behave the way they do and what makes our bond with them so strong.

Brain diseases such as Alzheimer’s and Parkinson’s affect an estimated one in six Americans and are increasing in incidence as the population ages. In this audiobook, we examine these and other conditions involving the damage and loss of neurons, including other forms of dementia, amyotrophic lateral sclerosis (ALS), chronic traumatic encephalopathy (CTE), and multiple sclerosis (MS).

Consciousness is more than mere awareness. It’s how we experience the world, how we turn input into experience. Once the province of philosophy, religion, or perhaps fantasy, neuroscientists have added a scientific voice to the discussion, using available medical technology to explore just what separates so-called “mind” from brain. In this audiobook, we look at what science has to say about one of humankind’s most fundamental, existential mysteries.

With global population numbers projected to increase by two billion by 2050, a veritable food crisis is on the horizon. In this audiobook we examine some of the complex factors involved in the coming “food crisis” and the innovative ideas and technologies designed to increase food production sustainably. We also examine current industry methods to increase production and the controversies surrounding them, including not only hot-button issues like genetically modified (or GM) and processed foods but also food safety and the physical effects of the modern diet.

The zombie has had a bit of a renaissance over the last decade. Hollywood churns out films like World War Z and TV shows like The Walking Dead, and communities throughout the country hold zombie runs and races. So what’s driving the zombie obsession? Where did the fear of this creature originate? In this audiobook, The Real Zombies of Nature, we look at the myth of the zombie versus real instances of zombification in the natural world and engage in some scientific speculation about what would happen if myth ever became reality.

Creativity was long thought to be a gift from the muses, a special quality of a select minority of people. Fortunately, more recent studies have debunked this belief and have shown promise for techniques to help us all boost our creative potential. Nature gives some people a genetic edge, but nurture has a large role in developing creative genius. In this audiobook, we look at this difficult-to-define quality from all angles: where creativity comes from, lessons we can learn from creative geniuses, and how to cultivate creativity.

Understanding why we age and how to prevent age-related physical and mental decline can help us to live in the moment and enjoy our health at any age. In this audiobook, we explore the latest thinking in why we age, strategies to help maintain good health, as well as research into the limits of human longevity.

Take control and retrain your brain to achieve a happier, healthier state of mind. In this audiobook, we examine aspects of daily life that affect mood such as perception, social support, and time management and offer approaches shown to boost contentment, including reframing negative events, increasing resilience through self-compassion, and practicing mindfulness.

We harbor roughly the same number of microbes as we have cells. This complex ecosystem is crucial to our health, affecting many processes including immunity, child development, and bone density regulation. Research in this area has exploded, and in this audiobook, we highlight some of the most exciting work on how the microbiome develops, its influence on brain and behavior, and implications in both contributing to and treating various disorders.

How do we define genius? Standardized testing to measure intelligence began in the first half of the 20th century, but a high IQ score is only one way to quantify genius. In this audiobook, Eureka! The Science of Genius, we review the latest research on the nature of intellectual and creative achievement, including traits that geniuses tend to share, how much of their ability is nature versus nurture, the cognitive processes involved during the stages of discovery and creativity, and, most importantly, what we can do to enhance intelligence.

Creationists, or those who hold the belief that the universe and all life was made by divine creator, have tried to use a myriad of tactics either to ban the teaching of evolution entirely or to have creationism and intelligent design taught alongside one another in public schools. In Evolution vs. Creationism, we take a close look at the rise of Darwinism, the arguments and opposition by the creationist movement, whether faith and science can coexist, and what could happen if the US continues on an anti-science trajectory.

The extreme drought in the US Southwest has brought the issues of water use and management to the forefront of media attention. Historically, arguments over water rights have plagued this area since the days of John Wesley Powell, and disputes mark the relations between states, city-dwellers, farmers, and environmentalists to this day. Add to that the challenges of climate change, which is altering rainfall patterns the world over, and the imperative to rethink water-management policies becomes acute.

If climate catastrophes like Hurricane Sandy seem to be on the rise, it’s for a reason. The likelihood of these extreme weather events are increasingly being tied to man-made global warming, mostly through overproduction of carbon dioxide. It’s no longer an abstract idea; it’s being felt locally, on every level. Climate Change and Extreme Weather gives you the tools to better understand what’s behind climate change, what might be in store during the coming decades, and how we can begin to reverse the detrimental effects mankind has had on the atmosphere.

Making ethical decisions involves more than listening to an inner moral compass, a feeling in the gut of what’s right and wrong. Questions of ethics in science are becoming increasingly complex, especially as technology encroaches upon even our most private cellular spaces. In Doing the Right Thing: Ethics in Science, we cover a wide range of areas in science and medicine where complicated ethical questions come to bear, including genomics and research where informed - and ethically sound - choices are the basis of many scientific studies.

Since the Industrial Revolution, our civilization has depended on fossil fuels for energy - first it was coal; then petroleum. If business as usual continues, we are looking at a world where sea levels will be high enough to submerge many coastal cities and extreme weather events like 2012’s Hurricane Sandy are the new normal. In this audiobook, The Future of Energy: Earth, Wind, and Fire, we review the energy problem and analyze the options from the mundane to the far out.