Understanding Orexin's Role

Orexin is a crucial brain chemical linked to wakefulness and eating behaviors, with significant implications for conditions like narcolepsy. A deficiency in orexin leads to excessive daytime sleepiness, akin to a flickering dimmer switch rather than a stable on/off switch for wakefulness. This understanding of orexin's function sheds light on its potential relevance for insomnia treatments as well.