Gentle Jogging News Today

Year and now this new year. here is our weekly segment about everything that worries us. one viewer writes i enjoy our daily hour of jogging but i worry about how it is affecting my knee cartilage.preventive measures i can take? >> it is taking a toll on their knees. >> prevailing wisdom on that was the point you just made, that it is going to wear out your knees. but studies dont actually back that up. what is knee cartilage? there is two big bones there, the femur and tib la, and the tibia and...