The most unsettling part is the loss of purpose

It's within this cavern of discomfort where we take stock of our courage—and figure out what we're made of

During my time in South Carolina, Paris Mountain loomed large—until I finally ran up it

Whether you run today or not, the emotion is just part of being a runner

Sure, the fitness app makes training and racing more social, but running is meant to be isolating. The question is: Can we run without it?