Health Metrics

Understand the metrics and trends in the Pulsyn app.

Understanding your Sleep Score How Pulsyn calculates your Sleep Score, what the bands mean, and how to read the hypnogram.

Understanding your Readiness Score What Pulsyn Readiness Score measures, how the bands map to your day, and the six contributors behind it.

Body Battery explained How Body Battery works, what the bands mean, and why it rises and falls through the day.

Heart Rate Variability (HRV) What HRV measures, why it is personal, and how Pulsyn uses it to contextualise recovery.

Blood Oxygen (SpO2) How Pulsyn tracks overnight SpO2, what the numbers mean, and how to read trends responsibly.

Cardio Fitness (VO2max) How Pulsyn estimates cardio fitness, the ACSM percentile bands, and what the two estimation tiers mean.

Biometric Age How Pulsyn estimates Biometric Age, the 13 features behind it, and the calibration windows to trust it.

Strain and Training Load How Strain Score and ACWR help you understand daily exertion and workload balance.

Cycle Tracking overview How Cycle Tracking works in Pulsyn, what you can log, and how it contextualises your readiness without replacing medical guidance.

Skin Temperature and Respiratory Rate How Pulsyn tracks skin temperature deviation, respiratory rate, and the stress index curve.