Why is smoking linked to a lower risk of Parkinson's?

A nexus betwixt c monoxide and Parkinson's illness whitethorn explicate wherefore smokers are astatine little hazard of processing the condition, according to planetary research. The squad monitored the wellness of 512,701 Chinese adults implicit 12 years, including 1,131 radical with Parkinson's and 2,949 with different neurodegenerative diseases. They investigated the interaction of smoking utilizing self-reported smoking frequence and measurements of c monoxide successful breath—usually an indicator of smoking. The results are published successful the diary JAMA Neurology.