Terms of Service

Last Updated: September 10, 2026

1. Medical Disclaimer

Vitality Arc is NOT a medical device, and the information provided does not constitute medical advice. Measurements, published population references, and custom model assumptions have different levels of evidence. The trajectories and cardio-age comparisons are illustrative scenarios, not validated predictions of healthspan, lifespan, disability, or independence. Always consult a physician or qualified healthcare provider before beginning any exercise program.

2. Reports and Availability

Access to the estimator is conditioned on your agreement to these terms. We may change, improve, suspend, or remove features at any time.

3. Accuracy of Information

The forecast is available for adults aged 18 and older. Its shaded ranges show sensitivity to selected assumptions, not statistical confidence intervals. Activity thresholds and functional-test comparisons cannot establish whether you can safely perform an activity, diagnose a condition, or replace clinical assessment. We make no guarantees about your future physical decline or capabilities at any specific age.