I tested them against the Apple Watch and the Polar chest strap to find out whether you can trust them for your workouts.

According to The Huffington Post, citing the NHS and Harvard Medical School, all you need are two fingers and a timer. Place your index and middle fingers on your wrist or neck—anywhere you can detect ...

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 ...

Your pulse and blood pressure work together as vital indicators of heart health, though they measure different things. While blood pressure shows how forcefully blood pushes against artery walls, your ...

When it comes to tracking your heart rate, nothing beats using equipment designed for such a purpose, such as chest strap heart rate monitors or electrocardiograms. However, if you're looking for an ...

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 ...

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 ...

If you’ve ever glanced at your smartwatch mid-workout and wondered whether your heart rate is impressively low for how hard you’re working, or not high enough because you’re taking it too easy, you’re ...

Heart rate zones represent different percentages of your maximum heart rate. They can help guide the intensity and effectiveness of your workouts. The benefits of exercise are widespread and include ...

Healthy hearts are adaptable, and heartbeats exhibit complex variation as they adjust to tiny changes in the body and environment. Mass General Brigham researchers have applied a new way to measure ...