"As an ultrarunner, I am constantly pushing my body to extremes. In order for me to stay competitive in my sport, I have to put in a lot of hours of intense training, which is often hard to do on top of a full-time job. I will be the first to admit that sometimes I simply push it too far! If I am faced with the choice between going out for a run or resting and recovering (even when it is needed),...[ + ]