Our heart is an incredible organ, working tirelessly every second of every day to keep us going. And one of the simplest, yet most insightful, metrics it offers about its health is your resting heart ...

The heart is the body's hardest-working muscle. Whether you're awake or asleep, or exercising or resting, your heart is always at work. It pumps blood through arteries to deliver oxygen to organs and ...

Tom Brownlee does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...