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Al
I haven't reviewed the melatonin literature for about five months--I did so extensively prior to that. It is truly an area where the amount understood is miniscule. In fact, we still do not understand even WHY we sleep! (which seems to be one of the basic questions of physiology and/or brain function!)
Whether to take melatonin, how much and when is really just playing the lottery at present. It seems one of melatonin's effects is as an aromatase inhibitor--and one can get THAT effect in other ways. I am certain there are many more effects.
This study was done retrospectively and relied on the subjects memories and subjective judgements (was there more light/incomplete darkness/etc and how often). Certainly not as accurate as one would like in drawing conclusions.
RB--Perhaps the midnight sun in Scandinavia counteracts their high fish oil intake as Scandinavians do NOT have a low rate of breast cancer.
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