AirPods Can Measure Your Heart Rate, but Are They Accurate?

In TODAY.com's Expert Tip of the Day, a cardiologist explains why a lower resting heart rate can be a good sign of heart health and how to improve this vital sign. Resting heart rate — the number of ...

Here’s what HRV is, how it works and what can cause it to rise or fall.

To live is to have a heartbeat, which is why it makes sense for us living things to have a good understanding of our ticker. It’s well-known science that our hearts beat faster when we exercise and ...

Cardiologists explain what’s normal versus what’s cause for concern. If you wear a Fitbit, Apple Watch or a similar wearable while working out, you already know that you have a useful tool right at ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Did you know you can ...

Sitting quietly at your desk, watching TV, or lying in bed at night, your heart should be taking it easy – beating steadily and calmly at somewhere between 60 and 80 beats per minute for most healthy ...

Your heart rate is a vital indicator of overall health, offering insight into how efficiently your body is functioning. While a normal heart rate is often associated with good health, a slower heart ...

Whoever we are, whatever we’re doing, we have a measurable heart rate. It’s a pretty clear sign of being alive. But what should your heart rate be when exercising? When we exercise, our heart rate ...