Chapter 15 - Stress Flashcards
Stressors
events or pressures that place demands on a person or their well being
Stress
the physical and psychological response to internal or external stressors
Health Psychology
subfield of psychology that discusses how psychological things such as stress affect physical wellbeing (illness and health)
Stressful events
life changes that can cause stress and illness
- they can be negative or positive
chronic stressors
sources of stress that occur continuously or repeatedly
perceived control
perception of stressor events (again, positive or negative) – can add to stress if lack of control
fight or flight response ‘
emotional and physiological reaction that readies us for action
HPA Definition
in charge of fight or flight response
Hypothalamus, Pituitary Gland, Adrenal Gland
HPA axis pathway
starts at hypothalamus, sends messages to pituitary gland, pituitary gland releases ACTH and sends it to blood stream.
The ACTH activates adrenal gland (just above kidneys)
Adrenal glands release hormones such as catechnolamiens and cortisol
—> activates sympathetic nervous system and deactivates parasympathetic nervous system
GAS stands for…
General Adaptation Syndrome
What is GAS
a three stage physiological response that appears regardless of the stressors that is encountered
- alarm phase
- resistance phase
- exhaustian phase
Alarm Phase
Resistance Phase
Exhaustion Phase
(all apart of GAS - the general adaptation syndrome)
Alarm Phase -mobilize resources Resistance phase (cope with stressor) --- resistance phase is the longest phase Exhaustion phase (reserves depleted)
Key thinker of GAS (General Adaptation SYndrome)
Hans Selye
highest resistance of stress during which phase of GAS?
Phase 2 - resistance cope with stressor
Immune System
a complex response system that protects the body from bacteria, viruses, and other foreign substances
Lymphocytes
white blood cells that produce antibodies that fight infection
Psychoneuroimmunology
is the study of how the immune system responds to psychological variables (Stressors)