Smoking lowers the risk of Parkinson’s, and here’s a theory why.

Smoking lowers the risk of Parkinson’s, and here’s a theory why. “Carbon monoxide has anti-inflammatory effects and in the brain helps to counteract cell stress,” explains Toni Pitcher. A huge study in China found that higher carbon monoxide levels, even among never-smokers, correlated with lower Parkinson’s risk, though the authors stress it’s observational and smoking is not the answer. ~ learn more