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Body Set Weight and Hormonal Regulation of Appetite
The body has a concept of body set weight, acting as a thermostat that determines the weight one should be at. Hormonal systems such as peptide YY and cholecystokinin regulate appetite based on this set weight, ensuring that you eat more or less accordingly. Leptin, produced by fat cells, signals the body to stop eating when body fat levels increase. This system explains why obese individuals may have a higher set weight.