PSYA02H3 Chapter Notes - Chapter 14: Weight Gain, Osteoarthritis, Chronic Obstructive Pulmonary Disease
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PSYA02H3 Full Course Notes
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Health psychologist are needed, as most premature deaths today are attributable to lifestyle factors. Body mass index (bmi): a statistic commonly used for estimating a healthy body weight given an individual"s height: dividing the weight (kg) by the same square of height (metres) Height: 180 cm 100/1. 82= 30: helps people know whether they"re at normal weight, underweight, overweight, or obese, healthy bmi ranges = 18. 5-24. 9, overweight= 25-29. 9, obese= 30+ Genes account for 50-90% of variation in body weight; factors influence body type, metabolism, and other physiological processes that contribute to body weight and size. Set point: a hypothesized mechanism that serves to maintain body weight around a physiological programmed level: controlled by genetic mechanisms, but your actual weight can be modified by environmental factors (how and what you eat) The difficulty with losing weight may be related to lower activity levels, rather than to any elevation of a set point.
