glp-1 ghrelin Gut hormones like (↑ hunger) & GLP-1/PYY (↓ hunger) signal to the hypothalamus' arcuate nucleus. Orexigenic (AgRP/NPY) & anorexigenic (POMC/CART) neurons integrate these signals, regulating food intake via Y1/Y5 & Mc4 GLP-1 “Food Noise”: What It
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