Apple’s revamped Health app will calculate your ‘health age’ and readiness score

Apple is overhauling its Health app with a pair of headline metrics — a "health age" and a daily "readiness score" — both synthesized by Apple Intelligence from the sensor data your iPhone, Apple Watch, and third-party devices already collect. This marks a notable shift for Apple, which has long gathered health data but left the interpretation largely to users and third-party apps. By moving interpretation into the AI layer, Apple is positioning itself to compete directly with dedicated readiness platforms