In fact, orexin is believed to promote feeding mostly by promoting arousal. Mutations in orexin receptors are answerable for narcolepsy in a canine design, knockout in the orexin gene provides narcolepsy in mice, and humans with narcolepsy have lower or absent amounts of orexin peptides in cerebrospinal fluid (Chapter 13). https://lloydm059pgx3.westexwiki.com/user