Bradycardia, a slow resting heart rate, is healthy for elite athletes — but it can be dangerous if not caused by exercise ...

Dear Dr. Roach: I am an active 76-year-old man. I became aware of an increase in my resting heart rate in April 2021, going from a resting rate of 48 to 74 beats per minute in a six-day period. It is ...

Tachycardia and bradycardia are two types of irregular heart rates. Tachycardia is when the heart beats faster than 100 beats per minute. Bradycardia is when the heart beats slower than 60 beats per ...

In this era of fitness trackers, we have easy access to our heart rate at any given moment. Every so often, a number catches your eye as it flashes on your Garmin or Apple Watch while you're sitting ...

A pacemaker is a small device that can send electrical signals to your heart. Here's who needs a pacemaker and how it works.

In a normal heart rhythm, your heart beats in a steady, even way. The upper part of your heart (atria) squeezes and pushes blood to the lower part (ventricles), pumping blood and oxygen out to the ...

“Understanding the remodeling that’s going on in the heart at the transcriptional level is pretty fascinating,” said Elizabeth Schroder Stumpf, a physiologist at the University of Kentucky, who was ...

Milestone Pharmaceuticals said Monday that an experimental nasal-spray medicine acted quickly to treat people experiencing episodes of a rapid but non-fatal heart rate — more than doubling the ...

That flutter in your chest could be more than stress. Doctors explain how arrhythmia, an irregular heartbeat, can signal ...

Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a heart rhythm problem, or arrhythmia. If you have it, your heartbeat is faster and irregular at times. When this happens, it’s harder ...