As your exercise session becomes more intense and more work is done, your heart beats faster and faster. This relationship means you can use heart rate as a surrogate measure for the intensity of ...

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 ...

A good heart rate for exercise is 50 to 70 percent of your maximum BPM—aim for 30 to 45 minutes three to five times a week. “In general, when people are looking to do a workout with heart health in ...

You track your VO2 max and working heart rate, but this underrated biometric may tell you more about your heart and long-term ...

Resting heart rate — the number of times your heart beats per minute when you’re sitting still — is an important vital sign. Doctors measure it to check how your body is functioning, and the number ...

That tension becomes especially clear with heart rate zone training, a popular five-tier system that endurance athletes use to measure effort and fine-tune performance. The well-known formula is ...

Exercising during pregnancy is generally safe and can be beneficial, but it's important to listen to your body. Heart rate naturally increases during pregnancy, so don't stress about exact numbers ...

Everything you need to know about photoplethysmography (PPG), the technology behind heart rate measurements in fitness watches and smart rings. When you purchase through links on our site, we may earn ...