You have officially been enrolled in the bonehead club.
Melatonin, is a chemical that the body produces when it is in the sun and it helps to regulate our sleep patterns. Because we live in an artificial world, some people do not make enough of it and thus, the supplement. Yes it works.
Voodoo? Are you sure you are a doctor?
"Acceptance doesn't mean resignation. It means understanding that something is what it is and there's got to be a way through it."--Michael J. Fox
