The ventromedial nucleus of the hypothalamus is the "start-eating" center of the brain; the lateral hypothalamus is the "stop-eating" center of the brain.

Ventromedial Nucleus

A nucleus within the hypothalamus of the brain that regulates metabolism, including hunger and satiety signals.

Lateral Hypothalamus

An area at the side of the hypothalamus that appears to function as a start-eating center.