feeling safe

less stress

feeling stressed

Heart Rate Variability (HRV) is an accurate, non-invasive measure of the Autonomic Nervous System (ANS) – which responds to everything: how you exercise, recover, eat, sleep and perceive stress.

Unlike basic heart rate (HR) that counts the number of heartbeats per minute, HRV looks much closer at the exact changes in time between successive heartbeats (also called inter-beat intervals, RR intervals, NN intervals, etc).

Intervals showing heart rate variability

By trending short HRV readings on a daily basis, our adaptive algorithms learn what your “normal” Autonomic Nervous System patterns look like, help you gain insights into your nervous system, stress and recovery activity, and then automatically guide you in improving those patterns over time.