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Study links ADHD to increased odds of Parkinson's, similar diseases

Researchers found that individuals with attention-deficit/hyperactivity disorder were 2.4 times likelier to develop Parkinson's disease and Parkinson's-like disorders before age 66, compared with peers without ADHD. The findings in the journal Neuropsychopharmacology also showed sixfold to nearly eightfold increased odds of Parkinson's and similar diseases of the basal ganglia and cerebellum among those with ADHD who received psychostimulant medications, with those ages 21 to 49 having the highest risk.

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