Heavy metal rocker Ozzy Osbourne died this week aged 76, just weeks after his farewell show and about five years after announcing he had Parkinson’s disease. Here’s what to know about the disease.

Ozzy Osbourne died at 76, following a battle with Parkinson’s disease. Here's what to know about the disease and his diagnosis.

Ozzy Osbourne lived with Parkinson's disease for years before his death. Here's what you need to know about the neurodegenerative disease.