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maxlamb
on May 8, 2019
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Researchers identify sleep as a reason why persona...
I personally find the Oura ring to be great at tracking sleep stages and various biometrics during sleep like HRV and body temp change.
redka
on May 8, 2019
[–]
But there's no way whatsoever to use to wake up at an optimal time, right?
Consider applying for YC's Spring batch! Applications are open till Feb 11.
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