Blog
Heart rate recovery: The mortality predictor you're ignoring
Heart rate recovery (HRR) after exercise is one of the most powerful predictors of mortality. Discover normal values by age and how to improve it.
Chronic cortisol: How stress ages your body (and how to stop it)
Chronic stress and disrupted cortisol rhythms are linked with faster biological aging. Learn what cortisol tests show and evidence-based ways to lower stress.
Stress and biological aging: How to monitor and reduce stress with Apple Watch
Discover how stress accelerates biological aging and how to monitor it with Apple Watch and SuperAge. Complete guide with science-based strategies to reduce stress.
Overtraining: The signs your Apple Watch can (and can't) detect
Learn how to recognize overtraining using HRV, resting heart rate, and other data from your Apple Watch. Complete guide to the signals you should monitor.
Body energy: How to monitor your energy reserves on iPhone and Apple Watch
Discover how SuperAge's Body Energy monitors your body's battery on iPhone and Apple Watch. Learn to interpret energy levels and optimize recovery and performance.