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Melatonin is thought to activate melatonin receptors in the suprachiasmatic nucleus of the hypothalamus to regulate the circadian clock and sleep–wake cycles. [21] When used several hours before sleep according to the phase response curve for melatonin in humans, small amounts (0.3 mg [ 56 ] ) of melatonin shift the circadian clock earlier ...
Life extension is the concept of extending the human lifespan, either modestly through improvements in medicine or dramatically by increasing the maximum lifespan beyond its generally-settled biological limit of around 125 years. [1]
Melatonin, an indoleamine, is a natural compound produced by various organisms, including bacteria and eukaryotes. [1] Its discovery in 1958 by Aaron B. Lerner and colleagues stemmed from the isolation of a substance from the pineal gland of cows that could induce skin lightening in common frogs.
The Life Extension Foundation (LEF) was primarily funded by the sale of nutritional supplements to members of an affiliated entity, the Life Extension Buyer's Club. [citation needed] The Life Extension Buyer's Club was incorporated in Nevada, and has a separate EIN employer number than the Life Extension Foundation. Its name was changed to the ...
Large doses of melatonin can even be counterproductive: Lewy et al. [48] provide support to "the idea that too much melatonin may spill over onto the wrong zone of the melatonin phase-response curve." The long-term effects of melatonin administration have not been examined. In some countries, the hormone is available only by prescription or not ...
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