I put slightly because of Muhammad Ali and Freddie Roach.
Since Muhammad Ali was diagnosed with Parkinson's syndrome in 1984, people are speculating whether his boxing matches contributed or even caused the illness directly.
Ali himself denied that boxing contributed to his illness. [source needed]
Yes, boxing can cause Parkinson's disease directly Yes, boxing can contrbute to Parkinson's disease, significantly Yes, boxing can contrbute to Parkinson's disease, slightly No, there's no link between boxing and Parkinson's disease see voting resultssaving...
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