Are Your Running Shoes Worn Out?

Sure you know running is a great health benefit. But did you know running in worn out shoes can actually hurt you? From muscle fatigue to shin splints to aches and pains in your joints,  running in old, worn out shoes can actually  promote more harm than good. Here are 5 ways to know when it's time to replace those shoes to keep your feet happy and make sure you are running pain free.