http://www.netvouz.com/droppingscience/tag/body?feed=rss droppingscience's bookmarks tagged "body" on Netvouz http://www.melatoninfaq.com/ Young and middle-aged adults usually produce about 5 to 25 micrograms of melatonin per night. This level declines as a person ages and this is reported to be the reason why older persons have difficulty sleeping. droppingscience Wed, 06 Feb 2008 05:04:56 GMT