Wanting to stop mid - workout has little to do with your body , Tabitha McMahon said . McMahon : It 's my mind . Change your mind , and your body will follow suit . Everyone in training finds herself crossing the finish line on tough days .
Wanting to stop mid - workout has little to do with your body , Tabitha McMahon said . McMahon : Change your mind , and your body will follow suit . Everyone in training finds herself crossing the finish line on tough days .