In an article in The Times of London (9/7/93), Dr. James Le Fanu provided an examination of the research on smoking and its apparent protective effect for certain diseases. Dr. Le Fanu stated unequivocally: "Smokers have a 50 per cent reduced risk of developing Alzheimer's--and the more smoked the greater the protection." He also noted that emerging research points to a similar effect of smoking on Parkinson's disease.
Smokers have a greatly increased likelihood of dying prior to the average age of Alzheimer's onset. That's one way of reducing your chance of getting the dreaded disease . . .