In November 1977, after many years of heavy smoking and drinking, Pryor had a mild heart attack at age 36. He recovered and resumed performing in January the following year. In 1986, he was diagnosed with multiple sclerosis. In 1990, Pryor had a second heart attack while in Australia. He underwent triple heart bypass surgery in 1991.

In late 2004, his sister said he had lost his voice as a result of his multiple sclerosis. However, on January 9, 2005, Pryor's wife, Jennifer Lee, rebutted this statement in a post on Pryor's official website, citing Richard as saying: "I'm sick of hearing this shit about me not talking ... not true ... I have good days, bad days ... but I still am a talkin' motherfucker!"
December 1, 1940 – December 10, 2005

Tags: richard pryor, multiple sclerosis