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 ...

When you stop exercising, your heart does not immediately come back to its normal resting rate. The heart returns to its normal rhythm at a gradual pace, during a process called heart rate recovery ...

A few weeks back, we reported on a research group that figured out how to measure heartrate using perturbations in WiFi signals. [Nick Bild] was interested in this so-called “Pulse-Fi” technique, but ...

Your heart beats around 100,000 times every day. Heart rate is a key marker of cardiovascular activity and an important vital sign. But your pulse is not as steady as a precision clock – nor would you ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. As a cardiovascular physiologist, I measure ...