Biological Age
Biological Age describes how your fitness numbers compare with published figures for different ages. It is an estimate, not a clinical measure, not a test result, and not a statement about your health.
What goes into it
- Cardio fitness (VO2 max)
- Resting heart rate
- Heart rate variability
- Sleep
- Walking speed
Cardio fitness is taken from your recent readings rather than a single one, because single readings vary. If a signal is missing, the estimate uses the others.
When it shows
- Push needs a few of these signals before it shows an estimate, so no single reading can decide it.
- It needs your age, read from Health.
- The screen says how many signals were used, so you know how much to read into it.
Push is free on the App Store, for iPhone and Apple Watch.
Push is a general wellness feature, not a substitute for professional medical judgment, does not account for existing conditions or medications.