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Robert Sapolsky Ph.D.

Robert Sapolsky Ph.D. >

38
Videos
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Why Don't Zebras Get Ulcers? Why Do We?
Episode 1 of Stress and Your Body Series
In Professor Sapolsky's introductory episode, get a behind-the-scenes look at the science of stress and preview the groundwork for the course ahead. What exactly happens to our bodies when we come under stress? And how is our response to stress…
Stress and the Biology of Depression
Episode 19 of Stress and Your Body Series
Turn to the realm of mental health with this close look at the ties between stress and major depression: one of the leading causes of disability in the world. Start with an overview of the disorder's symptoms before delving into…
Stress, Health, and Low Social Status
Episode 22 of Stress and Your Body Series
How strong a role does socioeconomic status play in what stressors you're exposed to, as well as your potential for chronic stress? It's a provocative question whose answer Professor Sapolsky reveals in this penetrating look at the characteristics and effects…
Stress and the Psychology of Depression
Episode 20 of Stress and Your Body Series
To truly understand clinical depression, you need to grasp its psychological aspects as well. In the second episode on stress and this prevalent disease, explore the pivotal role stress hormones play in depression. Then, use your newfound knowledge of stress…
The Nuts and Bolts of the Stress-Response
Episode 2 of Stress and Your Body Series
Every time you have a thought or emotion, things change in your body. Here, explore the two factors responsible for these changes: the nervous system and hormones. Learn how these systems work, how they're regulated, and: most important: what happens…
What's So Special about Being Human?
Episode 1 of Being Human
Humans are, from an evolutionary perspective, certainly the most unique species on Earth. Start the course by learning how to approach the subject of human behavior. You may be surprised to discover that there are plenty of ways in which…
Stress Management: Approaches and Cautions
Episode 24 of Stress and Your Body Series
Exercise. Meditation. Social support. Religious beliefs. In this concluding episode, learn how these and other outlets can potentially help you manage life's everyday stressors: both biologically and psychologically. Regardless of how many stressors you deal with daily, all of us,…
Stress and Your Heart
Episode 3 of Stress and Your Body Series
Armed with the necessary background information, explore how specific organ systems suffer when faced with chronic stress. In the first of a series of episodes on this subject, learn how long-term stress can damage heart muscles, inflame and clog blood…
Junk-Food Monkeys
Episode 2 of Being Human
What happens when nonhuman primates get to eat like Westernized humans? And what does it say about the costs: and surprising benefits: of our diets? Find out the answers in this episode, which focuses on a fascinating study of East…
Stress and Your Immune System
Episode 10 of Stress and Your Body Series
Turn now to the relationship between stress and your immune system. After mastering the basics of how this system works, delve into how frequent stressors can result in flare-ups of autoimmune diseases like rheumatoid arthritis, can increase your vulnerability to…
The Burden of Being Burden-Free
Episode 3 of Being Human
Investigate the latest anthropological and scientific understanding behind a pervasive part of our everyday lives: stress. You'll discover what makes psychological stress so damaging to health, where individual differences in stress come from, the nature of disorders including toxic hostility…
Poverty's Remains
Episode 5 of Being Human
Turn to an intriguing historical case of doctors who, failing to appreciate the impact of poverty on our bodies, invented an imaginary disease whose preventive methods killed thousands of people. It's a peek into an odd corner of medical history…
Understanding Psychological Stress
Episode 17 of Stress and Your Body Series
Why are some stressors more unbearable than others? This episode introduces you to three powerful psychological factors that work to modulate the stress response: having an outlet, taking advantage of social support, and having predictive information about when and how…
Stress, Learning, and Memory
Episode 13 of Stress and Your Body Series
Memory: whether implicit or explicit: is an essential part of everyday life. So it's all the more important to understand how it's affected by stress. This episode explains the science behind how short-term stress enhances memory and learning, while chronic…
Psychological Modulators of Stress
Episode 18 of Stress and Your Body Series
Conclude your look at ways to modulate the stress response by looking at two subtler variables: your control over the stressor, and your interpretation of whether the stress is getting better or worse. You also see why, despite being enormously…
Bugs in the Brain
Episode 4 of Being Human
Professor Sapolsky introduces you to parasites that exploit their hosts by altering their behavior. After looking at studies, including mites that make ants find food for them and worms that drive crickets to suicide, focus on how rabies and toxoplasmosis…
Stress and Female Reproduction
Episode 8 of Stress and Your Body Series
Get an insightful overview of the multifaceted effects of stress on the female reproductive system. Some of the topics you explore are the intricate relationships between stress and fertilization, ovulation, spontaneous miscarriages, high-tech in vitro fertilization, and the strength of…
Stress, Sleep, and Lack of Sleep
Episode 15 of Stress and Your Body Series
Most of us don't get as much sleep as we should. Yet the amount of sleep we get is highly intertwined with how our bodies deal with stress. Investigate why high levels of stress disrupt not only how long we…
Stress, Overeating, and Your Digestive Tract
Episode 5 of Stress and Your Body Series
Focus now on the role stress plays in our gastrointestinal tracts. Why do most of us eat more during stressful periods? How does stress affect bowel disorders like irritable bowel syndrome and spastic colons? And how does stress combine with…
Why Are Dreams Dreamlike?
Episode 6 of Being Human
Why does your brain generate sensory imagery while you sleep? Here, examine the neurology of sleeping and dreaming. Also, discover how the key to strange dreams lies in your frontal cortex, which, when it goes completely offline, allows the rest…