Study says too much running could be bad for your health

Plenty of people take up marathon running to stay in shape.

But a new study finds, in some cases, too much running could be bad for your health.

Alyssa Downing of Minneapolis was running around Lake Calhoun on Tuesday because she said, “I have a half marathon on the books in Chicago so I’m getting in a last couple of training runs.”

But now experts say you may want to stop after just one or two marathons because a new study published in the journal Mayo Clinic Proceedings says running long distances regularly may not only not help your health, it may harm it.

Cardiologist Dr. Retu Saxena of North Memorial Hospital in Robbinsdale agrees. She said, “What we find is that people who are extreme marathoners have little tiny areas of small heart attacks so to speak.”

The study out of the Mid America Heart Institute of St. Luke’s Hospital in Kansas City, Mo., said those who participate in frequent marathons or triathlons, even long distance bike races, put too much stress on their hearts.

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