Your watch already tracks heart rate, but turning on this view helps you adjust your workouts in real time. Here's how to do it.

A trainer breaks down how to perform the best workout to slow muscle aging to keep you feeling young and thriving.

For the study, nearly 90,000 UK residents wore wrist accelerometers to track their physical activity and time spent at ...

Now, before we get into the 30 best tested-and-reviewed workout pieces on Amazon, let’s address the elephant in the room: $$$ ...

After thousands of reviews and testing, we found the best workout clothes on Amazon to add to your closet. After all, nothing ...

Though the surveillance video from Planet Fitness on Mineral Spring Avenue capturing the assault involving former New England ...

Welcome to Start TODAY. Sign up for our Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! It's hard to believe it's already September: The ...

Jessica Johnson, 25, claims her arm muscles 'exploded' after she trained too hard in a Crossfit challenge involving pull-ups ...

to multiple 24 hour workout stints and (extremely unofficial) world record attempts. You can find Andrew on Instagram at @theandrew.tracey, or simply hold up a sign for ‘free pizza’ and wait ...

Apple today released watchOS 11with sleep apnea notifications, the Vitals app, training load, additional customization for ...

HONG KONG — China said Friday it would raise its retirement age for the first time in decades, as the world’s second-largest economy struggles with falling birth rates and an aging workforce.

Although working out while fasting is generally safe, there are factors to consider to determine if it’s right for you.