National Geographic Documentaries

Stress: Portrait of a Killer (2008x16)

Data emisji: Wrz 24, 2008

The stress response: in the beginning it saved our lives, making us run from predators and enabling us to take down prey. Today, human beings are turning on the same life-saving physical reaction to cope with 30-year mortgages, $4 a gallon gasoline, final exams, difficult bosses and even traffic jams — we can't seem to turn it off. So, we're constantly marinating in corrosive hormones triggered by the stress response. Now, scientists are showing just how measurable — and dangerous — prolonged exposure to stress can be. Stanford University neurobiologist, MacArthur "genius" grant recipient, and renowned author Robert Sapolsky reveals new answers to why and how chronic stress is threatening our lives in Killer Stress, a National Geographic Special. The hour-long co-production of National Geographic Television and Stanford University was produced exclusively for public television. In this revelatory film, discoveries occur in an extraordinary range of places, from baboon troops on the plains of East Africa to the office cubes of government bureaucrats in London to neuroscience labs at the nation's leading research universities. Groundbreaking research reveals surprising facts about the impact of stress on our bodies: how it can shrink our brains, add fat to our bellies and even unravel our chromosomes. Understanding how stress works can help us figure out ways to combat it and mitigate negative impacts on our health. For over three decades, Robert Sapolsky has been working to advance our understanding of stress — in particular how our social standing (our place in various hierarchies) can make us more or less susceptible to the damaging effects of stress. Throughout the film, he weaves the grim realities of the impact of chronic stress with his wry observations about 21st century life. "The reality is I am unbelievably stressed and Type A and poorly coping," says Sapolsky. "Why else would I study this stuff 80 hours a week? No doubt everything I adv