Melatonin for ... life extension? By the looks of it, looks like only younger people can sleep properly. https://www.ncbi.nlm.nih.gov/pubmed/21451205 pic.twitter.com/ipifUgQqEr
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With a lot of hormones and metabolic activity that drop with old age the hard question is whether the drop is an adaptation to decay or straight out decay itself. Will replacement cut all-cause mortality? It is hard to tell.
If older people slept as much as young people, how could we out-compete them?