BHAN155 Lecture Notes - Lecture 1: Hair Loss, Weight Loss, Body Mass Index

• School: University of Delaware
• Department: Behavioral Health & Nutrition
• Course: BHAN155
• Professor: Keenan Ryan

Document Summary

Obesogenic: environment that promote increased food intake, non-healthy food, and physical activity. Overweight: refers to having body weight more than 10 % above healthy levels. Obesity: refers to having body weight more than 20% above healthy levels. Negative effects of obesity: endocrine system suffers, poor mental health, risk for heart disease, sleep apnea (stop breathing while sleeping) Genes: obese parents tend to have overweight children, twins raised separately tend to have same weight, thrifty gene theory- higher body fat and obesity levels among tribes, possibly die to centuries of struggle to survive. Theory 1: hypothalamus that monitors eating does not work in obese people. Adaptive thermogenesis: suggests that think people send more effective messages to the hypothalamus: the more you eat the more you burn. Set point theory: suggests bodies try to maintain weight within a narrow rage or at a set point. Yo-yo diets: cycles which people diet and regain weight.