How to distinguish discomfort from pain

In running, some kinds of hurt are good–but when do you draw the line?

To run your second marathon, you might have to forget your first

Research shows runners forget the pain of running a marathon, which allows them to do another

Feeling post-race pain? DOMS may be to blame

Delayed onset muscle soreness or DOMS is a common complaint among many first-time racers and almost all marathoners. Fortunately, it’s entirely normal and often only temporary.