PSY100H1 Chapter Notes - Chapter 14.2: Sympathetic Nervous System, Reward System, Type A And Type B Personality Theory
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PSY100H1 Full Course Notes
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Health psychologists study positive and negative effects that humans behaviour and decisions have on our health, survival, and well being. Reducing risks posed by second hand smoke exposure by banning smoking in publc places: taxes, imaged-based warnings. Bmi: statistic commonly used for estimating healthy body weight given an individual"s height. Obesity associated with cardiovascular disease, diabetes, etc. Genes account for 50-90% of variation of body weight: influences body type, metabolism, etc. Set point: hypothesized mechanism that serves to maintain body weight around a psychologically programmed level. Family, food advertisements, friends can affect health, social influences are highly important. Study suggests that thinking positively about oneself can promote healthy weight loss. Likely that positive emotional manipulation reduced participant"s stress regarding dieting given that stress increase calorie intake. Restraint involved in dieting: especially avoiding certain highly reinforcing food may actually make the food more reinforcing in the long run.
