When a transmitter sends a Wi-Fi signal and a receiver captures it after it passes through a person, the signal’s changes can ...

The heart rate zone formula is flawed, especially for women. Here's how to rethink your training. These days, everyone from ...

Understanding your heart rate can be helpful to calibrate your perceived exertion, especially on easy and steady runs. This ...

Heart rate is one of the most basic and important indicators of health, providing a snapshot into a person’s physical activity, stress and anxiety, hydration level, and more. Traditionally, measuring ...

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 ...

Your heart is always active, but it is resting when you are calm and sitting quietly for extended periods. During this ...

Running in zone 2, by definition, should feel easy. And that’s a good thing, considering zone 2 runs make up the majority of any good training plan. These easy efforts serve as the building blocks for ...

“At a cardiac arrest, the first procedure is to take your own pulse first.” —The House of God by Samuel Shem That famous line told to med students is both obvious and true. It’s a reminder that in ...