Appetite
Appetite is the desire to eat food, felt as hunger. Appetite exists in all higher life-forms, and serves to regulate adequate energy intake to maintain metabolic needs. It is regulated by a close interplay between the digestive tract, adipose tissue and the brain. Appetite has a relationship with every individual's behavior. Appetitive and consummatory behaviours are the only processes that involve energy intake, whereas all other behaviours affect the release of energy When stressed, appetite levels may increase and result in an increase of food intake. Decreased desire to eat is termed anorexia, while polyphagia (or "hyperphagia") is increased eating. Dysregulation of appetite contributes to anorexia nervosa, bulimia nervosa, cachexia, overeating, and binge eating disorder.
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Famous quotes containing the word appetite:
“What a healthy out-of-door appetite it takes to relish the apple of life, the apple of the world, then!”
—Henry David Thoreau (1817–1862)
“In Homer and Chaucer there is more of the innocence and serenity of youth than in the more modern and moral poets. The Iliad is not Sabbath but morning reading, and men cling to this old song, because they still have moments of unbaptized and uncommitted life, which give them an appetite for more.”
—Henry David Thoreau (1817–1862)
“A faculty for idleness implies a catholic appetite and a strong sense of personal identity.”
—Robert Louis Stevenson (1850–1894)