<prompt> Which of the following decreases appetite?OrexinNeuropeptide YGhrelinLeptin  <response>: Food intake and appetite are regulated by various circulating hormones including ghrelin and glucagon-like-peptide 1 GLP-1. Ghrelin, mainly released from the stomach, increases food intake, induces appetite, enhances adiposity as well as releases growth hormone Ref: guyton and hall textbook of medical physiology 12 edition page number:811,812,813 