By receiving ghrelin, the hypothalamus in the brain senses hunger and produces 'hunger signaling' through the action of neuropeptide Y (NPY). The hunger signaling activates neurons in the ...

Appetite is regulated by a complex network of gastrointestinal and neurohormonal signals, including hormones like ghrelin, leptin, interleukin 6 (IL-6), and neuropeptide Y (NPY). These hormones ...