PSY 351 Lecture Notes - Lecture 17: Body Mass Index, Diabetes Mellitus Type 2, Hypertension
17 Nov 2017
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Chapter 11: physical development in middle childhood (school years) Girls shorter and lighter until age 9, when body fat begins to increase. From one generation to the next, there"s a trend in industrialized countries towards larger and heavier children. Gains in height have stabilized, but weight continues to increase. Weight of the brain increases by 10% Neurotransmitters and hormones may affect cognition and behavior. Too many fried foods and soft drinks. Children report they feel better and focus better after eating healthy foods. Lingering malnutrition can lead to permanent physical and mental damage. Body mass index (bmi): ratio of height to weight associated with body fat. Obesity: a greater than 20% increase over healthy weight based on bmi. Bmi greater than the 85th percentile - overweight. Bmi greater than the 95th percentile - obese. 32% of u. s. children and teenagers are overweight. A dramatic rise in overweight children and obesity has occurred in many western nations.
