Premature ventricular contraction (PVC) is a type of abnormal heartbeat, or arrhythmia. It happens when the heartbeat begins in the lower, rather than the upper, heart chambers. This creates an ...
Is your heart functioning properly? There is a test which can measure this, which is often recommended by medical professionals. Ejection fraction (EF) is a measurement, expressed as a percentage, of ...
Morning Overview on MSN
Your heart beats about 100,000 times every single day
Every person alive depends on a fist-sized muscle that contracts roughly 100,000 times between sunrise and sunrise again.
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