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Semin Reprod Endocrinol

Sleep and circadian restoration Researchers specifically targeting sleep improvement might emphasize bedtime administration and potentially start with lower doses to assess individual sensitivity to melatonin-related effects

The downside is that, while Life Extension does list its sources, the company cites the journal and applicable page numbers, but doesnt name the study or article the information came from (knowing this information can make verifying the claims a bit easier)

Erich Jarvis, PhDProfessor and the Head of the Laboratory of Neurogenetics of Language at Rockefeller University and Investigator with the Howard Hughes Medical Institute (HHMI)