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swsieber
on June 23, 2018
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Sleep Scientist Warns Against Walking Through Life...
Red light helps cells heal [1], ultraviolet light can kill bacteria. I'll find sources and measurements.
[1]
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4148276/
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[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4148276/