Occasionally hearing a heartbeat when your ear is pressed against a pillow is often nothing serious. Dr Anthony Youn has explained that it can simply be the carotid artery, which supplies blood to the ...

An abnormal heart rhythm, or arrhythmia (also referred to as an irregular heartbeat), is a condition in which your heart beats too fast (at more than 100 beats per minute, or BPM), too slowly (at less ...