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Process: Hunger and Appetite

How much and how often we eat is determined by both hunger and appetite. When the body needs food or at times of day when it expects a routine meal, the nervous and hormonal systems cause the stomach to contract, resulting in hunger pangs. Appetite is a pleasurable sensation caused by the production of digestive juices in the mouth and stomach.

Stimulating hunger and appetite

Hunger is stimulated by the body’s need for food or by the routine of meal times. The anticipation of food stimulates the appetite. Both sensations trigger a desire to eat.

From the 2010 revision of the Complete Home Medical Guide © Dorling Kindersley Limited.

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