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Ryan Reynolds says Michael J. Fox helped his late father James 'feel less alone' in his 20-year battle with Parkinson's in emotional post

Ryan Reynolds credits Michael J. Fox with making his late father James Chester Reynolds 'feel less alone' as he battled Parkinson's disease before he died in 2015.

No tests can conclusively show if a person has the disease, but doctors can make a diagnosis based on symptoms, medical history and a physical examination. The drugs do have some side effects, including impulsive and compulsive behaviour, hallucinations, sleep issues and blood pressure changes. Most people's life expectancy will not change a great deal, though more advanced symptoms can lead to increased disability and poor health.

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