STOP FUCKING UPVOTING THIS AND DOWNVOTING ME, AND GET FUCKING EDUCATED!!

http://www.lcolby.com/b-chap7.htm

http://www.usatoday.com/news/health/2007-05-09-200069294_x.htm

It is healthier than smoking in either case, the difference between users and non-users is a matter of tenths of a year, if not an average increase.