Stress and PA. Flashcards
what are some biological sources of stress?
- substance abuse (alcohol and drugs).
- nutritional excess (caffeine, food and sugar).
- hormone secretion- epinephrine, norepinephrine and cortisol.
what are some psychological sources of stress?
- perfectionist attitudes.
- compulsiveness.
- obsessions.
- need for control.
- neuroses.
- attitude, personality , values and motivation.
what are interpersonal sources of stress?
- lack of social skills.
- shyness.
- insecurity.
- loneliness.
- environmental strain (noise, temperature).
- personality, social skills, netwok, environment and motivation
What did Gunnar and Heim define anticipatory as in 2009?
- stressors are based on the expectation as a result of learning and memory.
what is stress?
- a state of disharmony or threatened homeostasis.
what is distress?
- negative stress ( divorce, deadlines, exams).
- produces uncomfortable feelings and harmful physical consequences, is bad.
- is something we dislike and seek to avoid.
what is eustress?
- positive stress (marriage, graduation, job promotion).
- produces positive feelings.
- motivating surge of energy ( can improve the efficiency and quality of whatever you are doing- exercise, sports and physical activity.
what is the general adaptation syndrome?
- it is a continuum of three stages developed by Selye in 1936.
what are the three stages of general adaptation syndrome?
- arousal/alarm.
- resistance.
- exhaustion.
what happens in the alarm response?
- multiple physiological reactions, most notably fight or flight reactions more so in males.
- females are more oriented towards a behavioural response of tend and befriend.
what feelings does the initial reaction result in?
- anxiety, irritability, and vulnerability until the stressor is resolved.
what is resistance?
- it is the stage that we progress to if the stressor is not resolved and continues characterized by strain, worry, cynicism, and difficulty sleeping.
what is the exhaustion stage?
- if the stress becomes prolonged and chronic with no resolution the individual experiences sufficient strain causing fatigue and numerous, insidious stress-related disorders, including anxiety and depression.
when is the stress response initiated?
- when some real, perceived or expected threat is encountered
what part of the brain is responsible for initiating the stress response?
- the amygdala–> stimulates the hypothalamus releasing adrenocorticotropic releasing hormone and cortisol which initiate the flight or fight response.
what are the hormones involved in the stress response?
- catecholamines: epinephrine and norepinephrine; released from the inner area of adrenal gland (adrenal medulla).
- cortisol; released from the outer portion of the adrenal gland (the adrenal cortex).
what is a primary appraisal?
- accessing something as important yet potentially damaging ( challenge, threat or harm).
demands of the situation- what do I have to do?
what is a secondary appraisal?
- acessing one’s resources to cope with the situation.
- resources available to cope- how can I cope?
what is homeostasis?
- ability of an organism to change and stabilize its internal environment in spite of constant changes in the external environment.
what does HPA stand for?
- hypothalamic- pituitary-adrenocortical.
what does SAM stand for?
sympathetic adrenal medullary.
what causes allostatic load?
to much load, or the wear and tear on the brain and the body, occurs from ongoing overactivity or inactivity of either system, which ultimately results in illness or disease. (HPA and SAM).
ex. chronic elevation in blood pressure or heart rate can lead to decreased immune function.
what is the cross-stressor adaption hypothesis?
- exposure to a stressor of sufficient intensity and/or duration will induce adaptation of stress response systems and decreased sensitivity.
what is sensitization?
- instead of adapting to the stressor the response to the stressor instead becomes more profound.