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PulseRing Pro
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See the full details firstSleep, training and recovery.
Plain-English guides to sleep, HRV, heart rate and training, with the sources listed at the end of each one.
Dry January benefits for sleep and HRV: what a month off does
What the Dry January research really found about sleep, what an alcohol-free month may show on a wearable, how to run it as a simple experiment, and who should not stop drinking...
Alcohol and sleep: what a night out does to your recovery
A few drinks help you nod off, then cost you REM sleep, a calm heart rate and HRV. Here is what the research and wearable data show, and how to protect your sleep through the pa...
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