|Term: General Adaptation Syndrome (GAS)|
|Definition (Myers): Selye's concept of the body's adaptive response to stress in three stages--alarm, resistance, and exhaustion.|
General adaptation syndrome, otherwise known as GAS, describes the body's short-term and long-term reaction to stress.Stressors, or events that cause stress, include things like starvation, being hit by a car, or suffering through severe weather--physical things. Additionally, humans can suffer emotional or mental stressors as the loss of a loved one, the inability to solve a problem, or even having a difficult day at work.
(The definition from above is from http://www.healthatoz.com/healthatoz/Atoz/common/standard/transform.jsp?requestURI=/healthatoz/Atoz/ency/general_adaptation_syndrome.jsp.)
PHASE 1: alarm reaction due sudden activation of sympathetic nervous system, leads to increased heart rate, blood flow to skeletal muscles, faint feeling of shock (these responses are the signs that your body is getting ready to fight the challenge that you are faced with).
PHASE 2: resistance, shows itself through rise in temperature and blood pressure, faster respiration rate, and more hormones released.
PHASE 3: exhaustion, when stress is persistent, the reactions mentioned above will eventually lead the person to become exhausted; this is very bad since exhaustion may lead to illnesses, collapses, or even death (in severely extreme cases).
|Related Terms and Concepts:|
Pics and Videos: