Insider: Biohackers use wearables to quantify their sleep and find patterns linked to sleep duration or quality.

“If you have too few deep sleep or REM sleep phases, you can only renew your cells insufficiently. You age faster,” said Berlin orthopedist, sports physician, and pain specialist Christopher Topar, who’s been testing the Oura ring for a few months. 

“60% of my pain patients say they sleep badly. Those who don’t sleep enough suffer from more pain,” he said. 

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