The condition, which affects as many as 1 million people in the United States, causes symptoms that can grow more severe with time and include tremors, stiffness, and balance and movement problems, according to the National Institutes of Health.
While there is no cure for the condition, some treatments -- like drugs and surgical options -- can help with symptoms.
Hoskins, who is 69, is not the only public figure to be touched by the disease -- for more famous faces of the neurological condition, click through the slideshow:
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