Sleeping heart rate, breathing rate and HRV: What your sleep data means

Tracking your sleep can reveal a wealth of information about your health that you may have been totally oblivious to before. If you utilize that data, you can manipulate your diet, workout routine, stress management tactics and other factors to become a superhuman. OK, maybe not a superhuman (unless you’re an expert biohacker), but you’ll still feel dang good.

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