ScienceWhen exercise is detrimentalTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience02/22/2018February 22, 2018Sport has huge health benefits that are undisputed. But too much sport can put undue stress on your bones. That can lead to stress fractures. Reducing the amount of exercise and varying your training program can help avoid the problem. https://p.dw.com/p/2t38IAdvertisement