Nearly 14 million Americans live with arrhythmias. Learn to identify the warning signs of these common heart rhythm disorders ...

However, some people have an irregular heart rhythm that causes their heart rate to jump between high and low. This condition is called an arrhythmia, or dysrhythmia. It can be alarming ...

It allows you and your doctors to see the rate and rhythm of your heart. On an EKG, your HRV measures between-beat variability. R-R interval is the timing between heartbeats, so HRV is measuring ...

Your doctor can also tell you which over-the-counter medicines are less likely to cause heart rhythm problems. If you have a heart problem, talk to your cardiologist (your heart doctor ...