Interesting study here : medscape.com/viewarticle/84...
A study involving nearly half a million statin users and the same number of nonusers failed to determine whether statin drugs harm memory.
Past studies on the effect of statins on memory loss have been contradictory, with some showing an association between long-term statin use and improved memory and others showing no effect on memory. The authors of the current study draw no conclusions that end this uncertainty.