2km. 1.24 miles? Stress fractures? What? Every student on a residential college campus that's bigger than tiny is going to walk 3 or 4 times that in a day. Mid

2km. 1.24 miles? Stress fractures? What? Every student on a residential college campus that's bigger than tiny is going to walk 3 or 4 times that in a day. Middle school students will stress their bodies a few orders of magnitude harder in sports practices (or even light exercise).