Heart rate zones signal how hard your heart is working. Find out why it matters when you’re exercising and how to find your target heart rate.
A fast heartbeat when you’re at rest could be a sign of an underlying problem. Find out if your resting heart rate is too high and how to lower it.
How a good heart rate monitor can help you monitor the intensity of your workouts and help you improve results.
Children have lower heart rates than adults, so usual calculations for optimum heart rate for exercise don’t apply. Figure a child-size approach to fitness.
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A cardiologist explains what research shows about the accuracy of wrist-worn heart monitors.