The Effect of Cigarettes and Coffee on Parkinson's Disease
Smoking. Cigarette smokers appear to have a lower risk for Parkinson's disease, indicating some protection by nicotine. This finding, of course, is no excuse to smoke, but such protection may help researchers develop new therapies.
Coffee Consumption. In a 30-year 2000 study of Japanese-American men, coffee consumption was associated with a lower risk for Parkinson's disease and the more coffee they drank, the lower their risk became. Caffeine, which is a known central nervous system stimulant, appears to be the protective factor. The study did not prove that coffee actually protects against Parkinson's, however, and further research is needed.