You know you’re officially a runner when you feel compelled to get new running gear for every season. And you’re really official when your family and friends start questioning your sanity as you head ...

I overheat very easily when I run, and develop small sweat blisters on my back, stomach, and shoulder blades. They are tiny transparent blisters that seem to be filled with water (sweat?). They take ...

This will be my final Sweat Science column for Runner’s World, which has led me to spend a lot of time in recent weeks reflecting on the lessons of the past five years. Since February 2012, I’ve been ...