When it comes to exercising, your heart rate is the gold-standard metric to uncover how hard you're pushing. It tells you whether you're working aerobically or anaerobically, how your body is reacting ...

If you are an athlete in training or simply keeping tabs on your vitals, measuring your heart rate is a great way to get a picture of your health. As any Orange Theory regular will tell you, keeping ...

Using a chest strap heart rate monitor can give you accurate, actionable insights to help improve your running. What is the best chest strap heart-rate monitor overall? The best chest strap heart-rate ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." Heartbeat monitors have been around for decades. Polar introduced the first wireless wearable ...