Heart

Palpitations usually occur when something disrupts the normal electrical activity or function of the heart. They may be felt when the heart is beating quickly, slowly, or irregularly (an arrhythmia) or when the heart is contracting more forcefully than usual. Sometimes, palpitations occur for unknown reasons in people with no evidence of heart disease or arrhythmias.

Palpitations can be very frightening. But most palpitations do not indicate underlying heart disease. If you are having palpitations, there is a good chance that nothing is seriously wrong. See What are palpitations. So when are palpitations serious? Palpitations could be a reason for concern if they are caused by an underlying heart disorder (such as heart valve

Palpitations may occur with changes in the: Heart rate, which is the speed at which the heart beats Heart rhythm, which is the pattern of the heart beats Force of ventricular contraction, which reflects how vigorously the heart is pumping Arrhythmia is the term used to describe irregularities or abnormal patterns of the heart’s pumping cycle.