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Alan Alda hosts this introduction to the physiology of stress in humans and animals. Describes how continued stress may cause physical or psychological illness, and how stress affects all animals. The continued stress that primates are capable of, is what can cause sickness. Observes monkeys and baboons. Suggests that the fight or flight response to stress once helped primates evade predators, but its long term effects can cause ill health. Stress-related diseases. Stress and immune system. Relaxation for health with steps for how to relax. Post-tramatic Stress Disorder. Aggressiveness along with mistrust and anger often are characteristics of people prone to cardiovascular disease. Illustrates how anger elevates blood pressure. Closed captioned. From the series Scientific American Frontiers. | |