Shin splints are an awful, jabbing, throbbing pain in your lower legs that's often caused by running, but people who hike, play basketball, or do other vigorous activities that involve your legs can also suffer from this piercing ailment. After making New Year's Resolutions to start exercising, many newbies experience shin splints, but changing up your routine, like switching to running on a treadmill after running outside, can bring them on too. Since it's a common issue, tell me . . .