PCS 181 Lecture Notes - Lecture 4: Social Isolation, Social Inhibition, Posttraumatic Stress Disorder

• School: Ryerson University
• Department: Physics
• Course: PCS 181
• Professor: Raffi Karshafian

Document Summary

Includes diseases within the heart and blood transport (veins and arteries) Mortality rates from cvd has decreased but onset of disease has not. Psychological factors are associated with cvd: people with depression are likely to develop heart disease. Biopsychosocial model and its role in cvd. Injury to the endothelium caused by hypertension, diabetes associated with behavioural and social risks: smoking, physical inactivity. Results in atherosclerosis where endothelial cells are inflamed, lipids form plaques (calcification) The heart must work harder to pump blood through vessels that are narrowing blood flow is interrupted and so if o2 delivery. Ischemia is a temporary restriction of blood flow. Myocardial infarction is the complete blockage of o2 and nutrients to the heart tissue. Primary focus is to restore blood flow in the short term. Secondary focus is to initiate treatment to stop the progression of disease: example using ischemic heart disease, behavioural approaches exercise, quit smoking, pharmacotherapy aspirin, cholesterol-lowering drugs.