If you're a lifelong powerlifter or bodybuilder, there's a good chance you're more concerned about growing your glutes, carving your core, or building your biceps than boosting your VO2 max. But for ...

OKLAHOMA CITY -- We all know we have to eat right and work out to stay healthy, but if you are trying to drop a few pounds, doctors say you may have to spend longer in the gym. Doctors say the best ...

The more insight you possess for your workouts, the more successful they become. That's why it's important to understand how to calculate your fat-burning heart rate and then implement this knowledge ...

Even if you exercise every day — whether that’s at home, at the gym, or taking your dog for walks — you might not be getting as much physical activity as you think you are. The World Health ...

Drinking a glass of water could perk up your brain with necessary hydration. Interestingly, researchers have also studied how drinking water can affect your heart rate and heart rate variability (HRV) ...

You glance at your heart rate monitor during a tough run and an unusually high number jumps out at you. Should you be excited or concerned?

In TODAY.com's Expert Tip of the Day, a trainer reveals the equipment-free hack to know you're exercising intensely enough.

As a lifelong health and fitness enthusiast with 15 years of experience, Rachel MacPherson is passionate about cutting through fads and noise. Her aim is to clearly communicate health information with ...

If you’ve ever worried about your heart rate during exercise being too high or too low, you’ll want to read this. Your "heart rate zones" might be completely wrong. Not only are zones defined ...

Heart rate variability typically decreases during stressful situations, although the heart rate increases. Managing stress levels can mean a more variable heart rate. Exercise and relaxation ...