When running with a friend, you’ve probably noticed that the warmup is the best time to catch up on life events or share weekend plans. Once you increase your speed or charge up a hill, it’s much ...

Did you know you can customize Google to filter out garbage? Take these steps for better search results, including adding my work at Lifehacker as a preferred source. Whether you're running or lifting ...

When it comes to modeling ideas around healthy fitness for her two-year-old son, running coach and former pro distance runner Kaitlin Gregg Goodman is careful about how she frames her own passion for ...

While people with medical conditions may require a heart-rate monitor during activity, most of us can use a simpler method to gauge intensity: a scale from 1 to 10 that measures how hard you feel your ...