WHEN IT COMES to building muscle and strength, the right training plan can be life-changing. Following a comprehensive program can save you time, boost motivation, and supersize your results. Because ...

The pace you can run at lactate threshold is one of the most important factors in successful long-distance race performance. It’s the hardest pace you can hold for about an hour, or the fastest you ...

Traditionally, most elite runners are extremely mum about their training and weekly mileage leading up to big races. But Allie Kieffer—who finished seventh in the 2018 New York City Marathon with a ...

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. After crossing six marathon ...

As strange as it sounds to nonendurance junkies, the most addictive element of triathlon is how fun the races are. The simple thrill of racing three different ways in a morning is hard to fully ...

What to do if you miss a week, have an extra week, can’t get this week’s long run in, and more. Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and ...