PSYCH 112 Lecture Notes - Duodenum, Homeostasis, Genetic Predisposition
Document Summary
Homeostasis or- why do fat people get hungry? (continued from 10/1/14) Cravings are caused by lack of particular nutrients: following cravings is a good idea because it will help refuel what your body needs, craving sugar can result in addiction. Satiety detectors telling body that there is enough food, the body is full. Sensors that tell the body that it is full: stretch sensors in stomach, intestine, hormone (cck) released by duodenum, right below stomach, signals hunger to stop. Humans get pleasure from eating that eliminate pain signals and it is a source of pleasure itself. Body mass index scale (bmi) measures how much mass a body is carrying. Fights peoples attempts to diet, makes it harder to lose weight. Overconsumption calories are convenient, always there, unhealthy foods are easily accessible. Some people can eat an absurd amount of food and not gain weight. Some peoples bodies change calories directly to fat and they are more susceptible to gain weight.
