http://slatestarcodex.com/2018/07/10/melatonin-much-more-than-you-wanted-to-know/ http://slatestarcodex.com/2018/07/10/melatonin-much-more-tha... Mostly under

http://slatestarcodex.com/2018/07/10/melatonin-much-more-than-you-wanted-to-know/ http://slatestarcodex.com/2018/07/10/melatonin-much-more-tha... Mostly under "2. What is the right dose of melatonin?", but you should probably read the whole thing.