Parkinson’s Disease and smoking: a 65-year follow-up

Takeaway

  • Being a current or ever smoker is associated with a reduced risk of developing Parkinson’s Disease (PD).

Why this matters

    Previous studies suggest tobacco smoking may have a protective effect against PD; the nature of this relationship is hard to elucidate due to retrospective study design, and a likelihood of smokers to quit smoking before PD diagnosis.