Polyphagia uses combining forms of "poly-" + "-phagia", from the Greek words πολύς (polys), "very much" or "many", and φαγῶ (phago), "eating" or "devouring". Polyphagia Polyphagia or hyperphagia is excessive hunger or increased appetite. 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), and the genetic disorders Prader–Willi syndrome and Bardet–Biedl syndrome. Knocking out vagal nerve receptors has been shown to cause hyperphagia. Causes of increased appetite include: Polyphagia usually occurs early
What Do I Have to Do is synth orienated and has multilayered vocals. Much of the synth was omitted and the drums, bass and vocals were toned down for the second album version. The third version, the 7" Mix, contains a newer drum track, multilayered vocals in the chorus and relies much less on the synthesizers on the album version. This version of the song also contains samples from American comedian Sam Kinison, and was used for the music video. Originally, "What Do I Have To Do" was planned to be released as the follow-up single to "Better the Devil You Know", but was later released