why did ozzy osbourne die

Ozzy Osbourne died of a heart attack, specifically an acute myocardial infarction, and out-of-hospital cardiac arrest. His death certificate also listed coronary artery disease and Parkinson's disease with autonomic dysfunction as contributing factors. He passed away on July 22, 2025, at the age of 76, surrounded by his family. Osbourne had been battling Parkinson's disease for several years before his death and had also faced other health challenges. His final public appearance was at a farewell concert in Birmingham, England, just weeks before he died.