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Task 20: General adaption syndrome (fight or flight) -stress-

Hans Selye’s General Adaptation Syndrome

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Scientist Hans Selye (1907-1982) introduced the General Adaptation Syndrome model in 1936 showing in three phases what the alleged effects of stress has on the body. In his work, Selye - 'the father of stress research,' developed the theory that stress is a major cause of disease because chronic stress causes long-term chemical changes. He observed that the body would respond to any external biological source of stress with a predictable biological pattern in an attempt to restore the body’s internal homeostasis. This initial hormonal reaction is your fight or flight stress response - and its purpose is for handling stress very quickly! The process of the body’s struggle to maintain balance is what Selye termed, the General Adaptation Syndrome. Pressures, tensions, and other stressors can greatly influence your normal metabolism. Selye determined that there is a limited supply of adaptive energy to deal with stress. That amount declines with continuous exposure. “Every stress leaves an indelible scar, and the organism pays for its survival after a stressful situation by becoming a little older.” ~ Hans Selye Going through a series of steps, your body consistently works to regain stability. With the general adaptation syndrome, a human’s adaptive response to stress has three distinct phases: ...

Now answer the following questions:

Who devised the General adaption syndrome model?
Can you name the 3 phases?

Task Discussion