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.

According to the Parkinson’s Foundation, Parkinson’s disease is a progressive neurodegenerative disorder that affects dopamine-producing neurons in the brain, resulting in both motor and non-motor symptoms including tremors, limb rigidity, cognitive impairment, depression, and balance issues.