General Adaptationtion Syndrome: The Three Stages Of General Adaptation

The definition of the term is as follows. General adaptation syndrome (GAS) is the predictable way the body responses to stress as described by Hans Selye (1907-1982). The three phases are
Alarm Reaction, Resistance and Exhaustion.

1. Alarm Reaction
The first stage of the general adaptation stage, the alarm reaction, is the immediate reaction to a stressor. What is stressor? Any urge, force, or pressure (that is, deleterious force) brought to bear on a person, bodily system, or governmental or private health care system or structure, such that the entity subject to such duress reacts in a manner that either perverts or transmutes its normal function. Example, the main stress hormones cortisol, adrenaline, and noradrenaline, is released