Metabolic specialist with 21 years of experience flags exercise habits that may accelerate ageing

Metabolic specialist with 21 years of experience flags exercise habits that may accelerate ageing Doctor warns daily HIIT, excessive running and poor recovery may speed up ageing; experts suggest balanced workouts with strength training, Zone 2 cardio and proper rest for longevity.

What happened

4 min read New Delhi Oct 2, 2026 11: 00 PM IST. Are you working out correctly? (Photo: AI Generated).

For context, a specialist with 21 years of medical experience lately listed daily HIIT, long-distance running, and heavy lifting without recovery as reasons that accelerate biological ageing. Taking to X, metabolic specialist Dr Sumit Sharma observed, "21 years of practising medicine, I've watched: 40 y/o destroys their joints chasing fitness while 65 y/o moves like they're 45. The difference wasn't effort. It was exercise selection. Here's what actually reverses biological ageing & what quietly accelerates it: 'What wears you down (long-term) is daily HIIT, long-distance running on concrete, and heavy lifting without recovery.'".

According to him, Zone 2 Cardio (45-60 mins, 3-4x/week) at a conversational pace; strength training (2-3x/week); compound patterns: squat, hinge, push, pull; and weighted walking (10-20kg) support.

The bottom line

Taken together, the developments around metabolic specialist with 21 years of experience flags exercise habits that may point to a situation that is still moving, and the coming days should bring more clarity.