Chapter 1. Hunger and Eating
Introduction
Hunger and Eating
Author: Richard O. Straub
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Video
This informative video explains the regulation of hunger and eating behavior, focusing on the authoritative research of noted researchers Kelly Brownell and Marlene Schwartz of Yale University. It begins by explaining how food is converted to energy in the body, including the role of the hypothalamus, glucose, and the hormones insulin, ghrelin, and cholecystokinin. Next, working from an evolutionary perspective, the researchers explain how weight regulation is complicated by advertising, readily available fast food, and other environmental cues that encourage overeating, especially of foods high in sugar, salt, and fat. The video ends with a brief discussion of childhood obesity, and the importance of good health policies in attacking this epidemic, including higher prices for unhealthy foods and smaller portion sizes.
Check Your Understanding
1.
1. Hunger is most accurately described as a(n):
2. Eating is most accurately described as a(n):
3. The food we eat is broken down by _____________ and absorbed in the body’s _____________.
4. The main source of the body’s energy is the simple sugar:
5. The level of glucose in the blood is regulated by secretions of:
6. The area of the brain that responds to several key hormones involved in hunger
regulation is the:
7. Ghrelin, a hormone that ___________ appetite, is secreted by the ___________ stomach.
8. Cholecystokinin, a hormone that ____________ appetite, is secreted by the ____________ stomach.
9. When there is a positive energy balance in the body:
10. Body fat stores decrease when:
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