Over training is a genuine concern for a lot of runners. The signs of over training have a large variation, from feeling sick and lethargic or even restless and unable to sleep . . . Right the way through to inflammation of joints and injury. The spectrum of symptoms is massive. But, over training isn't actually a very big risk for recreational runners! Over training comes from one of two things, or a combination of both: Too much intensity in too many of your sessions, (Doin