what are ailments of the circulatory system?
['Atherosclerosis. Atherosclerosis is a hardening of the arteries. ... ', 'Heart attack. ... ', 'Mitral valve prolapse. ... ', 'Mitral valve regurgitation. ... ', 'Mitral stenosis. ... ', 'Angina pectoris. ... ', 'Arrhythmia and dysrhythmia. ... ', 'Cardiac Ischemia.']