I found this longer term study really interesting, tc---http://www.sciencedaily.com/releases/2014/05/140522175711.htm
It is interesting, Ron, and thanks for posting it. Especially for non-smoking men.
This is good to know. thank you for sharing this
Good article. Also interesting website. I'm a little bit of a science nerd and especially matters about our brains now. Thanks for posting!