A fast heartbeat can be caused by emotions like stress or anxiety. Dehydration, or drinking caffeine or other stimulants, can ...

Does your heart sometimes behave erratically? A sudden flutter, a racing pulse, or an unusually loud heartbeat, even when you are not doing any strenuous activity and simply sitting, can feel deeply ...

In some cases, these irregular beats may point to arrhythmia, a condition in which the heart beats too fast, too slow or irregularly because of a disruption in its electrical signals. To understand ...