I am pleased to note that I am unlikely ever to get Parkinson's Disease

From The Boston Globe:

They tend not to smoke, drink, or seek thrills. They work hard. They show up on time, keep their homes neat, and follow complex medical instructions to the letter.

Doctors have noticed for decades that their Parkinson's disease patients often seem to share certain personality traits.

Now, a growing body of research, including surveys of Parkinson's patients and laboratory studies in mice, suggests that the disease, which afflicts more than a half-million Americans and has no cure, really does tend to strike straight arrows.

[...]

Though no one has followed people for decades to see whether those with a ''Parkinson's personality" are more likely to develop Parkinson's, Menza says the ''weight of the evidence" supports the idea of a link. His list of traits associated with the disease include industriousness, punctuality, orderliness, inflexibility, cautiousness, and lack of novelty-seeking." Other doctors mention drive, ambition, altruism, cleanliness, and a tendency toward obsession with details.