Carbon monoxide linked to lower Parkinson's risk, opening potential new treatment pathway

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Add as preferred source Credit: Astroonaut from Pexels A study of more than half a million adults has found that higher levels of exhaled carbon monoxide were associated with a lower risk of Parkinson's disease. The findings, published in JAMA Neurology , uncover a possible new explanation for the consistently lower rates of Parkinson's among smokers that have long puzzled scientists.