Apple Watch Vitals App Predicts Illness

The Apple Watch's new Vitals app, introduced with watchOS 11, is being lauded for its ability to predict illnesses like the flu and COVID-19 days before symptoms manifest. Users report that the app analyzes various health metrics, including heart rate, respiratory rate, and wrist temperature, to identify deviations from normal levels, prompting notifications that suggest potential health issues. Reddit users have shared personal anecdotes, with one stating, "The Vitals app knew I was sick 3 days before I did," supported by data showing abnormal wrist temperature readings. Apple emphasizes that these notifications include personalized messages to help users understand their health changes. While the technology is receiving positive feedback, users are reminded that the accuracy of readings can depend on how well the watch is fitted. This feature highlights the growing role of wearable technology in proactive health monitoring.