Daijiworld Media Network – Hebbal

Hebbal, Sep 27: Running is celebrated as one of the healthiest forms of exercise, improving stamina, mental health, and reducing the risk of chronic diseases. However, cardiologists are now cautioning that extreme endurance training may backfire, leading to myocardial fibrosis—a condition where scar tissue develops in the heart muscle, reducing flexibility and long-term function.

Dr Kumar Kenchappa, Consultant Interventional Cardiologist at Manipal Hospital Hebbal, explains, “Myocardial fibrosis develops over years of repetitive micro-injuries to the heart that don’t heal properly due to neglected rest. This scarring makes the heart less efficient, especially in young athletes who overtrain.”

Understanding the risk

Myocardial fibrosis occurs when repe

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