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by liber8 2332 days ago
Interesting that there is no mention of hydrogen peroxide. About 10 years ago, there was a flurry of news that greying hair was a result of a buildup of hydrogen peroxide[1].

Many scientists guessed that this buildup was caused in part by lack of sleep, as they believed that one of the benefits/purposes of sleep was the removal of hydrogen peroxide, and other waste, from cells. The lead photos in many of these articles was side by side photos of presidents at their inaugurations and at some point during their term.

[1] See, e.g. https://www.fightaging.org/archives/2013/05/reversing-hair-g...