PSYC 370 Lecture Notes - Lecture 12: Hypothalamus, Neuropeptide Y, Proopiomelanocortin

• School: Queen's University
• Department: Psychology
• Course: PSYC 370
• Professor: Janet L Menard

Document Summary

Development of numerous cultural practices that promote consumption has augmented the effects of evolution: practices of eating 3 meals/ day, in social gatherings, with progressively more palatable means (savoury. Sweet), adding butter to make food more palatable. Obesity- energy intake as exceeds energy output, caused by: differences in consumption: consume more calories, differences in energy expenditure: expend less energy, genetic differences: genes that influence body weight. Body mass index (bmi) = weight/height (kg/m2) Physical- cardio(cid:448)as(cid:272)ular disease, hyperte(cid:374)sio(cid:374), dia(cid:271)etes, alzhei(cid:373)er"s, so(cid:373)e (cid:272)a(cid:374)(cid:272)er. Estimates of direct medical costs (canada: . 8 billion in 1997, . 9 billion in 2000, . 6 billion in 2008. 10% gain of weight in men doubles their risk of cardiovascular disease. Prevalence of obesity in ocd countries (2004-08: canada is number 4 (4th most obese) 1 in 4 canadians over 18yrs of age are obese. Distribution of bmi categories by sex, ages 18-79,