Polyphagia or hyperphagia is excessive hunger or increased appetite.[1]

In medicine, polyphagia (sometimes known as hyperphagia) is a medical sign meaning excessive hunger and abnormally large intake of solids by mouth. It can be caused by disorders such as diabetes, Kleine–Levin syndrome (a malfunction in the hypothalamus),[citation needed] and the genetic disorders Prader–Willi syndrome and Bardet–Biedl syndrome.[2] Knocking out vagal nerve receptors has been shown to cause hyperphagia.[3]

Causes of increased appetite include:[4]

Polyphagia usually occurs early in the course of diabetic ketoacidosis.[6] However, once insulin deficiency becomes more severe and ketoacidosis develops, appetite is suppressed.[7]

The word polyphagia (/ˌpɒliˈfiə/) uses combining forms of poly- + -phagia, from the Greek words πολύς (polys), "very much" or "many", and φαγῶ (phago), "eating" or "devouring".

This page was last edited on 29 June 2018, at 10:06 (UTC).
Reference: https://en.wikipedia.org/wiki/Polyphagia under CC BY-SA license.

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