Beating yourself up for sitting out Sunday’s TCS New York City Marathon ? Don’t — your body might actually thank you.

From blistered feet and aching joints to a churning stomach and battered muscles, the iconic 26.2-mile race can wreck far more than just your ego.

“Running a marathon is an incredible physical and mental achievement, but it’s also a demanding event that places unique stresses on the body,” Dr. Mariam Zakhary , director of running medicine for Mount Sinai’s Department of Rehabilitation and Human Performance, told The Post.

A 2024 study of more than 1,000 NYC Marathon runners found that nearly 40% were injured while preparing for the race, and roughly 14% got hurt on the course.

Many of these injuries stem from overuse or training errors, which Zakhary said can ofte

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