Your heart rate rises on every inhale and falls on every exhale. At six breaths per minute this fluctuation peaks — your autonomic nervous system synchronises. Follow the light with your breath.
How it works
InhaleAs the light grows, breathe in — and press and hold anywhere on the screen (finger or mouse). Your hold tells the instrument you're on the in-breath.ExhaleAs the light fades, breathe out and release your hold. Empty fully before the next rise.FollowHold on the rise, release on the fall. The glow deepens as you synchronise — that is coherence building.
Choose your session
How stressed are you right now?
CalmVery stressed
The physiological effect — vagus nerve stimulation, increased heart rate variability — comes from your breath, not the screen. Six breaths per minute is the baroreflex resonance frequency. The light keeps the pace. Your breath does the work.
Coherence is the share of the session your hold-and-release rhythm matched the light. Above 50% on an early run is strong — and it climbs quickly with practice.