Heart Rate Variability (HRV)

In daily life, the heartbeat test focuses on the number of heartbeats per minute, but Heart Rate Variability (HRV) focuses on the rhythmicity between one heartbeat and another, whether it is more than 100 beats per minute during strenuous exercise or around 30 beats during sleep, the more rhythmical it is, the healthier it is.

“Higher spectral power of the alpha and theta band was observed at a breathing frequency of 0.1 Hz (Bradypnoe) compared with 0.5 Hz (Tachypnoe).”

— Physiol. Res. 54: 327-333, 2005

“During a breathing frequency of 6 breaths/min (0.1 Hz) a maximization of heart rate variability (HRV) amplitude was detected. This effect has been termed resonance frequency and cardiac coherence.”

— J. Breath Res. 13, 046003, 2019



1. Using A Mobile Phone Camera Or Under-Screen Optical Fingerprint Module For Heartbeat Detection, And The Score Of Heart Rate Variability Is The Standard For Rewarding.
2. For Users Who Have A Smartwatch, The Harmony Level Of Heartbeat And Breath Coherence Is The Standard For Rewarding.

Your heart-brain frequency is the most beautiful curve

Coming Soon