heart rate variability biofeedback
7 Hidden Wellness Indicators Your Device Misses?
Your device often skips the subtle signs - deep-sleep quality, morning HRV, skin conductance, and micro-stress patterns - that together give a fuller picture of your wellbeing. In 2023, a 20-minute improvement in deep sleep lowered cortisol by up to 15% according to the Sleep Health Study, proving that the