KINE 1020 Lecture Notes - Lecture 21: Heart Rate Variability, Hyperlipidemia, Junk Food

• School: York University
• Department: Kinesiology & Health Science
• Course: KINE 1020
• Professor: Michael Riddell

Document Summary

There is a link between chronic stress, major depression, and cardiometabolic disease. Acute stress: sns (sympathetic nervous system) (noradrenaline, adrenaline, cortisol) - makes eyes more alert, increases ventilation, increases heart rate reproductive system suppression. If you are under chronic stress: musculoskeletal system (tension, respiratory system (increased ventilation, cardiovascular system (heart rate, vasoconstriction, fluid retention/bp, endocrine system (high cortisol, insulin resistance, gastrointestinal distress. Body turns off stress through a process called feedback inhibition - negative feedback control of homeostasis- (hypothalamo-pituitary-adrenal axis) If the artery is blocked, symptoms: out of breath under physical exertion because you are under providing oxygen to the working heart due to the constricted arteries. If you do not do any physical activity, then you typically will not have any symptoms - can be a silent syndrome until they exert themselves. Stress and personality: you have some control over your reaction to stress. You can learn to relax and reserve the body"s hormonal response to stress.