Mostrando resultados por autor "Scientific American" en Todas las categorías

In this installment of the Ask the Experts series, Chemistry, our professors, scientists, and researchers tackle reader questions about the substances that compose all matter, their properties, and how they interact and change. Queries range from elementary questions, such as why some elements change color over a flame, to how chemistry works in everyday life, to how certain substances affect the body and more.

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.

Why do facts fail to change people’s minds? In this audiobook, we examine how we form our beliefs and maintain them with a host of cognitive biases, the difference between intelligence and thinking rationally, and some solutions for how to overcome these obstacles both in reasoning with others and in dealing with our own prejudices.

Why can you vividly recall the day your father took you to your first baseball game many years ago, but you can’t remember where you just put the car keys? The process of how - and what - we remember is a fascinating window into who we are and what makes us tick. In this audiobook, we explore what science can and can’t tell us about memory.

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.

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.

From irrational phobias to a midlife crisis, we’ve all experienced moments of utter confusion about the nature of our own behavior, emotions, or perception of reality. In this audiobook, neurologists and other scientists share what they know about how the mind works, including some of these baffling psychological experiences.

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.

An infant born in the US today will probably live more than 20 years longer than the average lifespan a century ago. While living well into the 80s and 90s is becoming more and more attainable, how many more years can humanity expect to gain? And how can we raise the quality of those later years? The two main barriers are accumulated damage to cells and organs that occurs over time and age-related illnesses like cancer and Alzheimer’s disease.

The Science of Diet & Exercise examines traditional weight loss advice and finds it wanting. Data shows that the kinds of foods you eat are as important as how much you eat, and studies of physically active hunter-gatherers illustrate that energy expenditure (caloric burn) stays virtually constant, regardless of activity. The nine articles in this collection present the most recent research examining the details of the metabolic process and testing new approaches, some of which can be applied to how we think about diet and exercise today.

Autism is one of three diagnoses that the DSM-5 includes in autism spectrum disorder (ASD). While our understanding of this condition has grown exponentially, research has been fraught with controversy. Autism appears to be on the rise, depending on how you define it, and its causes more complex than imagined.

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.

The science of education is elusive. Educators, academics, and scientists have struggled with issues like how to make learning approachable yet challenging, what to include in the curriculum and when, what the optimal class size is, and so on. In this collection, we explore the many ways that learning is also a scientific process and offer the latest theories of teaching and learning.

While many of us strive to live healthy lives, the task can be daunting and the information overwhelming. Should we be more concerned with our diet or with keeping our weight down? How important is exercise? What kinds of diseases should we really be worried about getting - or preventing? In Eat, Move, Think: Living Healthy, we’ve assembled a number of stories on what we think sums up a healthy lifestyle, as well as some of the common obstacles faced in trying to achieve it.

This fascinating and highly accessible book presents fantastic but totally feasible projections of what your brain may be capable of in the near future. It shows how scientific breakthroughs and amazing research are turning science fiction into science fact. In this brave new book, you'll explore.

Self-improvement is a lifelong quest. We all have things we’d like to change about ourselves, which is why many people make New Year’s resolutions. Yet, research shows that only about 8 percent of resolution makers achieve their goals. Changing personal habits is both hugely difficult and hugely rewarding. Here, Scientific American offers this guide on breaking bad habits and the ultimate satisfaction of making difficult life changes.

The reason we need sleep has long mystified scientists, but it’s crystal clear that we do need it. In fact, the more we learn about what happens while we snooze, the more we discover new benefits for multiple processes including hormone balance, immune function, emotional health, learning, and memory. Studies show that even one night of disturbed rest leads to measurable impairments, and for this mini-collection, we’ve gathered the most recent research on the mechanisms of sleep.

The Book of Revelation, the Maya, Nostradamus - humans have speculated about the end since, well, the beginning. In this book, we look at several “end of the world” scenarios - or at least, things that could make human life really difficult.

From increasingly severe storms to collapsing coral reefs to the displacement of Syrian citizens, in this audiobook we examine the effects of Earth’s changing climate on weather systems, ecosystems, and human habitability and what this means for our future.

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.