Originally Posted by
Spamtek
No matter how much serotonin you have in your body, if you sit around in bright lights until 5 seconds before you try to sleep, you are going to get well screwed with your melatonin supply. Light/darkness is what throttles your melatonin production, not precursor supply (with a normal human being, at least), so the best all-natural way to ramp up your melatonin is going with the flow of daylight and resisting your urges to turn on lights after sundown. That's tough, which is why supplementation is such an appealing alternative.