Electrocardiographic (ECG) recorders and electrocardiographic (ECG) digital plasters sold as a unit; heart monitors; heart rate monitors; medical apparatus for diagnosing suspected heart attacks; medical apparatus for preventing or reversing heart failure; medical apparatus for treating congestive heart failure; medical device, namely, a device for improving cardiac performance through aortic flow therapy; medical device, namely, a device for measuring arterial blood flow in the eye; medical device, namely, a device for measuring body position during sleep; medical device, namely, a device for measuring leg movements during sleep; medical instruments for measuring and displaying overall health, wellness, aging, blood pressure, blood glucose, blood properties, lung function, activity level, stress level, sleep monitoring, respiratory events, electrocardiogram data, heart rate, pulse rate via wire or wireless to relay hand-held mobile units and cloud computers; medical instruments for recording heart activity; medical instruments to measure blood pressure, cardiac output and other physiological and cardiovascular parameters; patient medical monitors for monitoring heart failure, heart attacks, sleep apnea, blood pressure, blood oxygen level, body temperature; telemetry devices for medical applications