The newly oxygen-rich blood (shown in red) returns to the heart and enters ... Did you know that your heart beats over 100,000 times a day? Get "heart smart" by checking out these amazing heart ...

Palpitations can feel like the heart skips a beat, or it is pounding, fluttering, or beating irregularly. A person may experience these sensations in the throat or the neck. Heart palpitations can ...

You have a medical history of heart disease or risk factors for it. Your heart is racing or skipping beats enough to affect your day-to-day activities. It's common to notice your heart beat faster ...

Premature beats occur when electrical impulses ... Steinbaum, DO, cardiologist and spokesperson for the American Heart ...

A heartbeat is one contraction and relaxation action of the heart that takes about a second. It is triggered by electrical impulses generated in the heart. SA node initiates the electrical ...