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 ...

Active heart rate measures a person’s heart activity during exercise. People can use heart rate zones to optimize workouts by ensuring that the heart rate stays within the ideal range. A person can ...

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 ...

You’ve probably heard that you should get at least 30 minutes of activity each day to stay healthy. While there are many different guidelines suggested by various organizations, the CDC has an easy-to ...

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 ...

Most fitness trackers offer a wealth of heart-rate data. Here’s how to make sense of it. By Talya Minsberg If you wear a smartwatch or fitness tracker, you likely already have access to a steady ...

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 ...