For instance, neuropeptide Y (NPY), agouti‐related peptide (AgRP), orexin, and melanin‐concentrating hormone (MCH) induce hyperphagia, whereas α‐melanocyte‐stimulating hormone (α‐MSH), oxytocin, corticotropin‐releasing hormone (CRH), and arginine vasopressin (AVP) induce anorexia (Crespo, Cachero, Jiménez, Barrios, & Ferreiro, 2014). The gene discussed is NPY; the disease is Anorexia.