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 ...

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

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

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 ...