Ask A GP: Is Running A Marathon Even Good For You?

So, while “The intense and repetitive strain placed on the body, particularly the joints, muscles, and connective tissues, can increase the likelihood of overuse injuries such as tendonitis and knee problems,” in general, “Running a marathon can be very good for your health when approached responsibly, but it can be harmful if undertaken without proper preparation and care.

Article source: https://www.huffingtonpost.co.uk/entry/is-running-marathon-bad-health_uk_69de2edde4b0ceb952971361