A review of studies into the link between smoking and Alzheimer's disease has found that people who smoke have a 79% higher chance of developing the condition. The review analysed 24 previous studies and found an increased risk for current smokers but not for people who had given up. The link may be due to smoking damaging blood vessels and impairing blood flow accelerating damage to brain tissue. The review was carried out by researchers at Imperial College London.
You can find out more about this research by clicking on the link in the title of this post.