What (besides the obvious) are the benefits of quitting smoking?

After 40 years and 3 packs a day, I quit smoking 2 weeks ago (with the help of Chantix). I read an article years ago that lists all the changes in your body and long term benefits. It stated how long it takes your body to get rid of all the chemicals that are in cigarettes, cancer risk after so many years, and so on.
Does anyone know what I am talking about and where can I get this article or list?