Orexin A
- •what is Orexin A
- •Orexin A wakefulness
- •Orexin A narcolepsy
- •Orexin A intranasal
- •Hypocretin-1 research
- Orexin A(Hypocretin-1)· Sleep & Stress Support
- Orexin A is the brain's wake-up signal. Loss of orexin neurons is the cause of narcolepsy. Research focuses on whether supplemental orexin can support alertness in deficient states.
What is it?
Orexin A, also called hypocretin-1, is a 33-amino-acid neuropeptide produced by neurons in the lateral hypothalamus. It plays a central role in wakefulness, arousal, appetite, and reward.
In plain English
Orexin A is the brain's wake-up signal. Loss of orexin neurons is the cause of narcolepsy. Research focuses on whether supplemental orexin can support alertness in deficient states.
How it works
Activates OX1R and OX2R receptors across wake-promoting brain regions, stabilizing arousal states and gating transitions between sleep and wake.
What researchers study
- •Narcolepsy research
- •Wakefulness and alertness studies
- •Appetite and reward research
- •Intranasal delivery for CNS access
- •Comparison with Orexin B
What the internet talks about
Discussed in nootropic, narcolepsy, and shift-work communities as a promising but still-experimental wakefulness compound.
Bro-science translation
“The wake-up neuropeptide.”
Commonly compared to
Common stack discussions
Compared with Orexin B and Modafinil in alertness discussions. Often discussed alongside Selank and Semax in CNS research.
Related peptides
Related categories
Frequently asked questions
Quick summary
Orexin A (hypocretin-1) is a 33-amino-acid neuropeptide studied for wakefulness, narcolepsy, and arousal regulation.