Bill Geist announced that he has Parkinson's Disease on July 1, 2012. He lived with the condition for approximately 10 years before telling his children and 12 years before telling the public.
Geist announced the diagnosis on "CBS Sunday Morning," a program he appeared on regularly as a news correspondent. Many viewers, Geist's children and his producer were unsurprised when they heard the diagnosis, as Geist had shown symptoms over the years.
Parkinson's Disease produces symptoms such as muscle spasms, decreased cognitive abilities and difficulty speaking. Patients' nerves slowly lose the ability to communicate, as certain dopamine-producing brain cells die. Many patients choose not to announce their diagnosis until symptoms become apparent.