title: What do irregular heartbeats mean?  Heart palpitations may be benign, or they may signal a serious problem.  How can you tell the difference?
mesh_terms: D001145:Arrhythmias, Cardiac / Q000175:diagnosis* / Q000517:prevention & control*; D018880:Atrial Premature Complexes / Q000175:diagnosis / Q000517:prevention & control; D003937:Diagnosis, Differential; D006304:Health Status; D006801:Humans; D008487:Medical History Taking; D005082:Physical Exertion; D018879:Ventricular Premature Complexes / Q000175:diagnosis / Q000517:prevention & control