Jackson was diagnosed with progressive supranuclear palsy, also known as PSP. Here's what to know about his cause of death.

The civil rights activist had been battling PSP, a rare neurodegenerative condition, for over a decade before his death.

What is progressive supranuclear palsy (PSP), Jesse Jackson's rare illness? The civil rights leader faced PSP, a ...

Learn about progressive supranuclear palsy (PSP), a rare brain disorder affecting body movements, balance, and eye movements. Understand the differences between PSP and Parkinson's disease.

Progressive supranuclear palsy is a rare condition that took the life of Civil Rights icon Jesse Jackson. Also known as PSP, the disease is often confused with Parkinson’s, especially in the early ...