Although heavy metal icon Ozzy Osbourne had publicly shared his struggles with Parkinson's disease , his official cause of death has been revealed. According to his death certificate, the cause of death was listed as a heart attack (via The New York Times ). The certificate also cited cardiac arrest, coronary artery disease, and Parkinson's disease as contributing factors.

A heart attack — also known as acute myocardial infarction — is often confused with cardiac arrest , but the American Heart Association says that the two are different but related. Cardiac arrest can occur suddenly due to an electrical problem in the heart, causing it to stop beating. A heart attack, on the other hand, happens when blood flow to the heart is blocked, though the heart may continue to beat. These

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