PSY100H1 Chapter Notes - Chapter 14: Passive Smoking, Adrenal Medulla, Sympathetic Nervous System
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PSY100H1 Full Course Notes
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Researchers study both the positive and negative effects that humans" behavior and decisions have on their health, survival, and well being. 21% of all deaths in canada over the past decade are due to smoking-related illnesses. Provincial and municipal laws are reducing the risk of second-hand smoke by banning it in public places. Freshman fifteen - increased food intake, decreased physical activity, increased levels of alcohol consumption, habits. Body mass index (bmi); a statistic commonly used for estimating a healthy body weight given an individual"s height. Calculated by dividing the person"s weight by the square of the person"s height. Someone in the heathy weight range would have a bmi between 18. 5 and 24. 9. Genes account for 50% to 90% of the variation in body weight. Genetic factors include body type, metabolism and other physiological processes. Genes contribute to the development of a set point; a hypothesized mechanism that serves to maintain body weight around a physiologically programmed level.
