PSYC 1013 Lecture Notes - Lecture 9: Body Mass Index, Sympathetic Nervous System, Adrenal Medulla
Document Summary
The numerous and complex connections between behaviour and health certainly have created an important niche for health psychologists. These researchers study positive and negative effects of human behaviour and decisions have on their health, survival and well being. Life shortening problems lung, mouth and throat cancer, heart disease, and pulmonary diseases such as emphysema. 20% of all deaths in canada are smoking related. Life expectancy = 7-14 years less than a non-smoker. Added written warnings on the cigarette boxes. Body mass index (bmi) a statistic commonly used for estimating a healthy body weight give an individual height. Bmi is (cid:272)al(cid:272)ulated (cid:271)y di(cid:448)idi(cid:374)g the pe(cid:396)so(cid:374)"s (cid:449)eight (cid:894)kg(cid:895) (cid:271)y the s(cid:395)ua(cid:396)e of the pe(cid:396)so(cid:374)"s height (m) Set point a hypothesized mechanism that serves to maintain body weight around a physiologically programmed level. Initial set point is controlled by genetic mechanisms. E(cid:374)(cid:272)o(cid:373)passes (cid:1005)(cid:1004) to (cid:1006)(cid:1004)% of o(cid:374)e"s (cid:449)eight. Actual weight can be modified by environmental factors what you eat.
