Discover which fitness metrics matter most for meaningful progress. Learn how expert assessment of posture, mobility, ...

When Mike Prytkov lost 44 pounds in a year, he lost a lot of muscle mass too. He's since learned how to maintain his weight ...

A combination of cardio and strength training is crucial for heart health, muscle strength, and healthy aging.

LOOKING to get fit in 2026? Let tech do some of the hard work for you – and without spending a fortune. I’m The Sun’s tech ...

As a fitness professional and doctor of physical therapy, I’ve always been active. I spent most of my 20s chasing the “toned” look (which, for the record, isn’t even a real thing; it’s marketing ...

We've all been there: obsessed with one specific workout, whether it's a so-hard-it-hurts HIIT class, a makes-your-bod-rock ...

VO2 max is an intimidating word for an easy-to-understand biometric: It’s how well your body uses oxygen when you push ...

If you've kept up your fitness New Year's resolution, you'll be looking for clues that it's working. Here's what to look out ...

Learn the basics of calorie deficit for effective weight loss in a simple way. These practical weight loss tips explain what calorie deficit means, how it helps your body burn fat, and safe steps to ...

Progress photos can highlight weight loss changes you might miss in the mirror or on the scale, keeping you motivated on a ...

Reducing salt doesn’t always mean eating better. From the perspective of a U.S.-based specialist in healthy habits and ...

Here’s what to know about body composition numbers and what these metrics mean for your health and performance.