It's a type of neurotransmitter inhibitor (inhibitor) that serves to maintain balance in the brain that are stimulated. This allows the brain to relax and sleep.
And it is a neurotransmitter substance category inhibition (inhibitor) by acting in the brain has been gradual return-tun, which enables the brain to relax and sleeping comfort.
and it is kind of nerve terminal media restraint (inhibitor), which will be the balance in the brain that are stimulated which help to make the brain in a relaxed and comfortable sleeping