a relatively stable state of physiologic equilibrium
how an organism responds to change
chemical messengers sythesized in the nuerons
common types are serotonin, dopomine, epinephrine, norepinephrine, and acetylcholine
stabilizes mood, induces sleep, and regulates temperature
hightens arousal and increases energy
the higher functioning portion of the brain
responsible for regulating and maintaining physiological activities that promote survival
reticular activating system
the communication link between body and mind
autonomic nervous system
peripheral nerves that are largely automatic and beyond voluntary control
divided into two parts...
sympathetic and parasympathetic
fight or flight
restores equilibrium after danger is no longer apparent
chemicals manufactured in one part of the body whose actions have physiologic effects on target cells elswhere
the mechanism for controlling hormone production.
can be negative or positive
the physiologic and behavioral responses to disequilibrium
general adaptation syndrome
the collective physiologic processes of the stress response
has 3 stages
immediate stress response that releases cortisol, the stress hormone, and primes the body for fight or flight
stage of resistance
characterized by restoration to normalcy
stage of exhaustion
when one or more adaptive or resistive mechanisms can no longer protect a person experiencing stressors.
unconcious tactics to defend the psyche
stress-reduction activities selected conciously to deal with stress
drugs and alcohol as stress relief cause more problems than they fix
diseases that result from prolonged stimulation of the autonomic nervous and endocrine systems
social readjustment rating scale
a rating scale that is based on the number and significance of social stressors a person has experienced in the last 6 months. it predicts a person's potential for developing a stress-related disorder.
eliminating the potential for illness before it occurs.
screening for risk factors and providing a means for early diagnosis of disease
minimizes the consequences of a disorder through agressive rehabilitation or appropriate management of the disease
methods that promote physiologic comfort and emotional well being
natural body chemicals that produce effects similar to those of opiate drugs such as morphine