ache, active, Activities, aorta, auricle, beta blocker, beta-blocker, cardiac, cardiac arrest, cardiovascular disease, catheterization, circulatory system, coronary artery, defibrillator, disabilites/ailments, Disabilities/Ailments, ECG, EKG, EKG/ECG/electrocardiogram, exercise, fitness, heart, heart attack, heart disease, heart monitor, high blood pressure, Illustrations, Lifestyles, Medicines, men's issues, metaphorical illustration, monitor, rehabilitation, running, stairmaster, stent, stress, Themes/Issues, Tools/Technology, transparent, valves, ventricle