Summary Why Zebras Don't Get Ulcers,

A snapshot of the summary - Why Zebras Don't Get Ulcers, Author: Robert M Sapolsky ISBN: 9780805073690

• 1 Why Zebras don't get Ulcers

• 1.1 some initial concepts

• What are the three type of stressors

  1. Acute physical crises 2. Chronic physical challenges 3. Psychological and social disruptions
• What is a recent invention?

  Sustained psychological stress, mostly limited to humans and other social primates. We can experience wildly strong emoties linked to mere thoughts.
• What is a stressor?

  Anything in the world that knocks you our of homeostatic balance
• What is a stress-response?

  What your body does to reestablish homeostasis after the affect of a stressor.
• What is anticipation in the context of stress?

  It can be the stressor it self. We can be smart enough to see things coming and this can turn on a stress-response as robust as if the event had actually occurred.
• Which ideas did Selye formalize?

  1. The body has a surprisingly similar set of responses. 2. If stressors go on too long they can make you sick.

• 1.3 What your body does to adapt to an acute stressor

• How does your body react to stress?

  1. Energy is mobilized and delivered to the tissues that need them; 2. Long-term building and repair projects are defend; 3. Pain is blunted; 4. Cognition sharpened.
• what are the three stages stages of Selye made to explain why stress can make us sick?

  1. Stressor is noted; 2. Adaptation/ resistance; 3. Exhaustion
• What was wrong with three stages of Selye?

  Very rare that any of the crucial hormones actually depleted during even the most sustained of stressors.

• 2 Glands, Gooseflesh, and Hormones

• 2.1 Stress and the autonomic nervous system

• What is the automatic nervous system?

  Split in sympathetic nervous system and the parasympathetic nervous system. An automatic system that reacts to your surroundings without you having much control.