This question always comes to mind whenever I see people jogging along sidewalks, and wonder. Sidewalks are generally concrete or cement or something, which is definitely harder than dirt, so…
This question always comes to mind whenever I see people jogging along sidewalks, and wonder. Sidewalks are generally concrete or cement or something, which is definitely harder than dirt, so…
Flat feet tend to make knees hurt much earlier, believe me
Source: guess