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Lecture

HLSC 1F90 Lecture Notes - Cardiovascular Disease, Blood Vessel, Adrenocorticotropic Hormone


Department
Health Sciences
Course Code
HLSC 1F90
Professor
Brent Faught

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CHSC 1F90 September 25th 2012
1
Stress Management
Week #3
Inability to listen is one of the more common stress factors for university students
Eustress = positive stress
Distress = negative stress
Stress diagram (Resistant to stress starts from Eustress Distress
- Some systems reacting to everyday stressors in a balanced and healthful manner is a response.
- Fight or flight Choosing to fight or run away from the stressor
Energy Stores
1) Replenishing superficial stores: getting proper sleep, aerobic exercise, diet
2) Deep Stores: something you can’t handle (all genetics)
- Deep stores are genetically predisposed. When we deplete our deep stores; we stop living
Psychoneuroimmunology (PNI) analyzes the relationship between the minds response to stress and the
functioning of the immune system
- During periods of prolonged stress elevated levels of adrenal hormones, including cortisol, destroy
or reduce the ability of the white blood cells knows as “natural killer T cells”
- Killer T cells aid in the immune response, and when they are suppressed the body is less effective
at combatting illness
The General Adaptation Syndrome:
Hypothalamus: regulates your inner autonomic nervous system.
- Stimulates internal responses
- Stimulates pituitary
Pituitary gland: sends response down to adrenal glands
- Stimulates ACTH
- ACTH: to secrete and release cortisol into the bloodstream
Sympathetic and Parasympathetic nervous system = fight or flight response
1. Alarm phase
A stressor is perceived. Slight drop in homeostasis occurs as the mind and body
temporarily lose balance
2. Resistance phase
Adaptation resources are mobilized to combat stressor. Endocrine system comes into play
3. Exhaustion phase
Adaptation energy stores are depleted. Replenish them, and the body will return to
homeostatic state
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