of runners would be ill-advised to run 50 marathons in 50 days," says Patrick Milroy. "There are risks of chronic damage to your body by doing this sort of thing. Chronic stress fractures would be the main risk, and damage to your muscles. The body
. It does help me to avoid some injuries, but it makes me extremely susceptible to tight calves and stress fractures of the metatarsals. The natural method of shock absorbtion happens during the heel strike phase, which obviously you don't benefit from as a
