Stress Management Flashcards
Stress definition
The body’s response to a real or interpreted threat (physical, psychological, environmental) that leads to a disruption in the body’s homeostasis
Allostatic defn
The body’s adaptive response to stress brought on by the numerous physical, psychological, and environmental challenges
Purpose of insulin
Signals cells to intake glucose for energy which helps blood glucose levels return to normal
Stressor defn
The actual threat or stimuli that challenge homeostasis
Physical stress examples
Injury, infection, temperature change, poor diet, poor sleep, overuse of antibiotics, etc
Psychological stress examples
Personal problems, financial hardships, family conflict, unemployment, workload, etc
Cellular stress examples
Toxins, extreme temperature changes, mechanical damage that leads to cellular damage, imbalance between free radicals and antioxidants, etc (related to exposure to environmental stimuli)
Eustress vs distress
Eustress can actually strengthen certain physiological functions (immunity) while distress can impair physiological function/cause imbalance
Allostatic load
The overall burden of chronic stress and life events and the body’s required effort to respond to the stressor and re-establish internal stability
Social determinants of health defn
Economic and social factors that impact people’s health
Three main body systems involved in the stress response
-HPA Axis
-Sympathetic nervous system (SNS)
-Parasympathetic nervous system (PSNS)
Components of the HPA Axis
Hypothalamus, pituitary gland, adrenals
What happens when the HPA axis is activated?
The hypothalamus releases corticotropin releasing hormone (CRH) which signals the pituitary gland to release adrenocorticotropic hormone (ACTH) which causes the adrenals to release cortisol
Hypothalamus - Pituitary - Adrenals for the eventual release of cortisol
Cortisol impact on blood pressure and blood sugar
Increases blood pressure to provide add’l blood to muscles
Increases blood glucose levels by activating the metabolic pathway called gluconeogenesis (where non-carbohydrate substrates are used to create glucose)
What is released when the SNS is activated in response to stress?
Epinephrine/adrenaline and norepinephrine/noradrenaline which increases blood sugar levels, heart rate, and heart contractions