The watchOS 11 beta slowed me down, in a good wayApple Watch watchOS 11 update introduces new Vitals app, Training Load feature, and ability to pause Activity Rings for better flexibility and insight into fitness metrics.
A personal trainer at a longevity clinic says you should care about 3 fitness markers if you want to live a long, youthful lifeThree essential fitness metrics can help maximize workouts for longevity: VO2 max indicates heart health, muscle mass, and balance key for staying active.