Latest on melatonin:

High Melatonin Content Can Help Delay Aging, Mouse Study Suggests
04/25/07 -- A study carried out by researchers from the University of Granada's Institute of Biotechnology shows that consuming melatonin neutralizes oxidative damage and delays the neurodegenerative process of aging. In this study researchers used normal and genetically-modified mice which were subjected to accelerated cell aging. Researchers believe their results can also be applied to humans.

http://www.bio.com/newsfeatures/news...l?cid=28500016