Comment Re:At a guess . . . (Score 2) 179
and everybody knows melatonin puts you to sleep.
Melatonin is a neurotransmitter involved in triggering sleep, it's also involved in gallbladder function converting cholesterol into bile. What most people don't know though is that it can cause eye damage in high doses (above 0.8mg) if taken regularly. Health food stores sell the stuff in 3mg+ tablets of course.