# orexin

A messenger made by a small group of brain cells that helps keep us awake through the day and holds sleep and waking steady. It's also called hypocretin.

## Where it comes up

- [Are sleeping pills safe to take?](https://nitez.com/sleeping-pills)
- [What is narcolepsy, and could I have it?](https://nitez.com/narcolepsy)

https://nitez.com/words/orexin