India, Oct. 29 -- Dr Mukul Mittal, a sports medicine physician and medical director at Ultrahuman, told HT Lifestyle in an interview published on Oct 28, 2026, that people may be “obsessing over the wrong numbers” when focusing on wearable sleep scores and step counts, and pointed to other metrics he said better predict healthspan.
Four metrics highlighted by Dr Mukul Mittal
Dr Mukul Mittal identified four indicators he said predict future health and independence:
* VO2max (cardiorespiratory fitness)
* Grip strength
* Leg power
* Ability to get up off the floor without using hands
He said, “If I could measure only one thing about a person's long-term health, it would be cardiorespiratory fitness. VO2max is one of the strongest predictor...