Ahh i just had a lovely smoke and now i'm back to give more lectures on why smoking is good for you.

"..nicotine does enhance our ability to think, perform and take tests. Thanks to new research, scientists now know it increases our memory function, too.

read this article: http://news.discovery.com/human/smoking-is-good-for-you.html

Leave out the minor negatives. Look at the bigger picture :D