Jesse Jackson was diagnosed with a rare neurological illness called progressive supranuclear palsy (PSP) , after initially being thought to have Parkinson’s disease.

Quick Scoop: What illness did Jesse Jackson have?

  • Jesse Jackson lived for years with symptoms first described publicly as Parkinson’s disease in 2017.
  • In 2025, his diagnosis was updated to progressive supranuclear palsy (PSP) , a rare neurodegenerative brain disorder that can look similar to Parkinson’s but generally progresses faster and affects balance, eye movements, and speech.
  • PSP was described by doctors and advocacy groups as an “atypical Parkinson’s” condition, sometimes informally called “Parkinson’s plus.”
  • He had been managing this condition for more than a decade and was hospitalized in November 2025 for observation related to PSP.
  • When he died in February 2026, his family did not specify an exact cause of death, but reports widely noted that he had been living with PSP for many years.

Mini breakdown: PSP in simple terms

  • PSP is a degenerative brain disease that affects movement, balance, and eye control, often causing sudden backward falls and stiffness.
  • It can be confused with Parkinson’s because of overlapping symptoms like slow movement and muscle rigidity.
  • There is currently no cure; treatment focuses on managing symptoms and maintaining quality of life.

Information gathered from public forums or data available on the internet and portrayed here.