Even if you're a runner, you may not have heard the term "Jeffing" before. It's a method of alternating between running and ...

In late April, over 25,000 runners will line up for the Brooklyn Experience Half Marathon in New York, making it America’s fastest-growing race. Again. The half marathon is having a moment.

Websites, books and magazines typically recommend a 16-week training plan to prepare for a full or half marathon. “Four-month training programs that take you up to race day are fairly standard ...