at what age does parkinson's start
Parkinson's disease typically occurs in people over the age of 60, of which about one percent are affected. Males are more often affected than females. When it is seen in people before the age of 50, it is called young-onset PD. The average life expectancy following diagnosis is between 7 and 14 years. The disease is named after the English doctor James Parkinson, who published the first detailed description in An Essay on the Shaking Palsy, in 1817.