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

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

The three main symptoms are tremor (shaking), slowness of movement and rigidity (muscle stiffness). Subtle changes in a person’s walking pattern could be an early sign of Parkinson’s disease. Some people develop very small handwriting, a loss in their sense of smell, nerve pain or insomnia.