Maryland's Tobacco Resource Center - Linking Professionals to Best Practices

Does Smoking Increase Risk of Developing Alzheimer's Disease?

November
2010

According to a longitudinal study conducted by Kaiser Permanente, in comparison to non-smokers, heavy smokers (defined as those smoking greater than two packs daily) more than doubled their risk of developing both Alzheimer's and vascular dementia--with increases of 157% and 172%, respectively. Though the cause of this increased risk is unknown, the authors suspect that increased inflammation (often caused by smoking) may play a major role, and that quitting smoking may lower this risk.