01:830:340 Lecture Notes - Lecture 14: Stress (Biology), Hans Selye, Behavioral Medicine
Document Summary
Behavioral science is applied to prevention, diagnosis, and treatment of medical problems. Study of psychological factors that impact positive health and recommends improvements in health-care systems and health policy within psychology. Influence of psychological and social factors on health. Long-standing behavior patterns increase risk of physical disorders. Alarm: immediate response to danger or threat. Releasing hormone (crh) stimulation of the pituitary gland adrenal gland stimulation adrenocorticotropic hormone(acth) cortisol release. Low on ladder: high resting cortisol, poor activation, muscle atrophy, decline in testosterone, hypertension and immune system impairment. High on ladder: lower resting cortisol, but greater activation. Excess corticotropin- releasing factor (crf) by hypothalamus + reduced sensitivity of the pituitary gland too much cortisol and. Negative affect and stress intensity severity. Positive outlook and optimism reduced risk. Stress hormones cytokine interleukin 6 tissue inflammation less resistance to infection and injury. Pneumocystis pneumonia, cancer, dementia, or wasting syndrome. Pre-exposure prophylaxis (prep): daily pill for those at risk.
