title: A racing heart.  Gaining control.
mesh_terms: D004562:Electrocardiography; D005080:Exercise Test; D007722:Health Knowledge, Attitudes, Practice; D006339:Heart Rate; D006801:Humans; D010353:Patient Education as Topic; D010809:Physical Fitness; D013617:Tachycardia, Supraventricular / Q000175:diagnosis* / Q000517:prevention & control / Q000628:therapy*