Health Sciences 1001A/B Lecture Notes - Lecture 4: Allostatic Load, Hans Selye, Walter Bradford Cannon

• School: Western University
• Department: Health Sciences
• Course: Health Sciences 1001A/B
• Professor: Shauna Burke

Document Summary

Stress refers to: situations that trigger physical and emotional reactions = stressor, reactions themselves = stress response (how you learn to cope with it) Stess = the general physical and emotional stat that accompanies the stress response. Responses to stressors: primary determinant of the health consequences associated with stress is how the individual responds to the stress, responses to stressors include: Two control systems are responsible for the physical response to stressors: nervous system, endocrine system. Part of the nervous system that is not under conscious supervision. Endocrine system: system of glands, tissues, and cells that help control body functions by releasing hormone and other chemical messengers into the bloodstream, helps prepare the body to respond to stressor. Brain detects threat: neruo-chemical message sent to hypothalamus which releases chemical to. Pituitary gland which releases adrenocorticotropic hormone (acth) into bloodstream: acth reaches adrenal glands which release cortisol and other key hormones into the bloodstream.