Rejiva measures ECG, Heart Rate, Heart Rate Variability (HRV), Respiratory Rate, Sleep Position, Restfulness, Breathing Index, and Energy Level to analyze the state of the Autonomic Nervous System (ANS).

Rejiva measures ECG, Heart Rate, Heart Rate Variability (HRV), Respiratory Rate, Sleep Position, Restfulness, Breathing Index, and Energy Level to analyze the state of the Autonomic Nervous System (ANS).