Orexin is a neuropeptide produced by only about 10,000-20,000 brain cells. What is its job? It regulates wakefulness, amongst other things. Give a rat some orexin up its nose and it’ll stay awake, even when sleep deprived! Destroy the neurons that make orexin in the brain? The subject will experience cataplexy. Orexin might not be as popular as some of the other brain chemicals in popular literature, but it is no less important. Give this necklace as a gift to those living with a sleep disorder, to those fighting to improve the quality of life of those with said sleep disorder, or to those studying into the long, lonely night (aka sleepy but starry-eyed, pre-med students).
