When we worry or experience stress, our body turns on the same physiological responses that an animal’s does, but we do not resolve conflict in the same way – through fighting or fleeing. Over time, this activation of a stress response makes us literally sick. Combining cutting-edge research with a healthy dose of good humor and practical advice, Sapolsky explains how prolonged stress causes or intensifies a range of physical and mental afflictions, including depression, ulcers, colitis, heart disease, and more. It also provides essential guidance to controlling our stress responses. (BOOK)