hunger motivation unit 7

ancel keys

research on hunger, found that when no food people isolate, weird behavior, interpersonal skills lost

dieting long term doesn’t work

after diet rapidly put on weight, diet makes them fatter

hunger motivation

understand why we eat, hunger makes us do things, drive state

low glucose levels in the blood, trying to make it right with homeostasis

lateral hypothalamus

ON button, HUNGRY when stimulated

ventromedial hypothalamus

OFF button, FULL when stimulated

basal metabolic rate BMR

calories burned without moving

set point theory

predetermined weight range to maintain, when body below more hunger and lower metabolic rate to restore weight

hormones

GOLIP

ghrelin, orexin, leptin, insulin, ppy

insulin

secrete by pancreas, REGULATES blood sugar

leptin

by fat cells, FEEL FULL, DECREASE hunger, metabolism

orexin

OVERREACTS hunger hormone from hypothalamus like smell bread

obestatin

IM FULL from stomach

ghrelin

GROWLING IM HUNGRY hormone from stomach

PPY

IM NOT HUNGRY hormone from intestines DECREASE hunger

anorexia nervosa

intense fear of food, continues to starve

bulimia and binge eating

binging, vomit or over exercise

loss of control, guilt, shame, laxative and vomit not good

eating disorder causes

genetics, environment, exposed to dieting

body mass index BMI

percentage of person’s body fat

obesity

disorder by bing excessively overweight, considered to have BMI over 30%