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 ...

A cardiologist explains why resting heart rate is one of the simplest yet most powerful indicators of heart fitness. The article breaks down what a healthy range looks like, what a high resting heart ...

In addition to the effects on red blood cells, endurance exercise leads to other mechanisms that help the heart become ...