2 Ways running shoes cause shin splints

I recently saw a runner who thought that he might have a tibial stress fracture. But it turns out, it was just shin splints, which of course is good news. Because you don't really want a tibial stress fracture. Shin splints is much easier to treat.  One of the questions he asked me was about the best running shoes based on his foot type.  This runner really needed more stability than got from the running shoes that he was wearing. What are two different ways shoes can actually cause shin splints in runners? That's what we're talking about today on the Doc On The Run Podcast.