Chapter 10 Flashcards
immunity
the function that guards the body from invaders, both internal and external
lympocytes
immune cells responsible for waging war against disease or infection
antibodies
substances produced by the white blood cells in response to invading agents
stress
the mental, emotional and physiological response of the body to any situation that is new, threatening, frightening or exciting.
4 major groups of sleep disorders
- problems with falling and staying asleep
- difficulties staying awake
- difficulties adhering to a regular sleep schedule
- sleep disruptive disorders
stressor
a stress causing event
eustress
positive stress; health and performance continue to improve even as stress increases
distress
negative stress; unpleasant or harmful stress under which health and performance begin to deteriorate
homeostasis
a natural state of equilibrium, which the body attempts to maintain by constantly reacting to external forces that attempt to disrupt this fine balance
general adaptation syndrome
GAS - a theoretical model that explains the body’s adaptation to sustained stress.
3 stages of GAS
- alarm reaction
- resistance
- exhaustion and recovery
alarm reaction
immediate response to a stressor
resistance
for a short while the body copes with the stressor
exhaustion and recovery
if stress becomes chronic and intolerable, the body loses its ability to cope. It may recover of fail.
explanatory style
the way people perceive the events in their lives; optimistic or pessimistic
self-esteem
a sense of positive self-regard and self-respect