Heart rate zones are a way to describe how hard you're working during a cardio workout, like running or cycling. The faster your heart beats, the harder you're working. So an easy jog might have ...

Other variables could affect your heart rate, such as: Here is a chart showing how the normal resting heart rate changes with age: In general, a heart rate that's normal for you might not ...

Metrics like daily step totals and average resting heart rate are already being used to predict cardiovascular health. Zhanlin Chen, a medical student at Northwestern University in Chicago ...

Now, researchers are proposing an enhanced metric, which combines the two using basic math: Divide your average daily resting heart rate by your daily average number of steps. The resulting ratio ...