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The ventromedial hypothalamus when activated reduces hunger.
The hypothalamus is a small part of your brain that sits just above the pituitary gland. It controls various bodily functions like hunger, thirst, body temperature, and hormones released by the pituitary gland. The three parts of the hypothalamus that regulate food intake are called the ventromedial nuclei, the lateral hypothalamic zone, and the arcuate nucleus. The ventromedial nucleus is the center of satiety and when stimulated causes the feeling of satiety. On the other hand, the lateral hypothalamic zone is the center of nourishment and when stimulated, it causes the feeling of hunger. Finally, there is the arcuate nucleus which is like a switchboard that receives various signals from the gastrointestinal tract. This nucleus sends neural fibers to regulate the feeding center and the satiety center. The lateral hypothalamus responds to any internal or external stimulation that causes a feeling of hunger. Once you've eaten, the ventromedial hypothalamus sends signals telling you when you feel full and have had enough.
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