Anti-Anxiety Drugs and Alzheimer's

French and Canadian researchers report a correlation between use of anti-anxiety drugs like Valium and Xanax and developing Alzheimer's. This can occur in as little as 90 days. Shorter term usage does not appear to raise this issue. 

www.nbcnews.com/health/health-news/anxiety-drugs-linked-alzheimers-n199501

This could be a real problem for the U.S. because Valium was the #1 anti-anxiety drug in the 1970s and Xanax took its place in the 1980s and after. Even now, Valium is the #13 most prescribed psychiatric drug. 

www.forbes.com/2010/09/16/prozac-xanax-valium-business-healthcare-psychiatric-drugs.html