Talk about the winter that wasn’t! Our weather was certainly perfect for the golf tournament, but we are 15 to 20 degrees ...

Fitness trends come and go. However, every once in a while, a training method emerges that truly endures. One of those methods currently dominating gyms and running tracks alike is high-intensity ...

Talk about the winter that wasn’t! Our weather was certainly perfect for the golf tournament, but we are 15 to 20 degrees hotter than we should be. I don’t know ...

There comes a time in every runner’s life when it’s time to kick things up a notch. That means one thing and one thing only: interval training. There’s a reason loads of runners don’t like intervals.

VO2 max measures your body’s maximum oxygen use and relates to longevity and health. Army’s H2F system uses HIIT to improve VO2 max and overall health. Consistent HIIT, 2–3 times weekly, improves VO2 ...

High-intensity interval training is important, but coming back to your breath can be crucial to helping you train.

The modern fitness landscape has shifted from the anonymous "big box" gym toward the precision of the boutique studio, where specialization meets community. Before stepping into these high-octane ...

There comes a time in every runner’s life when it’s time to kick things up a notch. That means one thing and one thing only: interval training. There’s a reason loads of runners don’t like intervals.

From a childhood marked by loss to an abusive marriage that nearly claimed her life, Shyy Sachdev's journey has been anything but ordinary.When told at 49 she might only have five years left to live, ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Peloton’s class ...

A randomized trial found boxing-style HIIT reduced body fat by 13.2% compared to walking. Here's what the peer-reviewed ...

Fitness Routines That Actually Work After 60: 12 Smart Ways to Stay Strong, Steady, and Energized There is a funny myth about ...