It really goes without saying doesn't it? Yet people still smoke cigarettes.
Cigarettes: a product that if you use it correctly, will likely eventually kill you.
When I find a book that says it WAY better than I could ever, I promote it. In fact, I bought 20 of these books and lend them out to my patients. Their feedback is that it was the easiest way they had ever come across to finally move forward away from smoking.
Pick up the book. Don't quit smoking (yet). Read the book.
A healthier future awaits you.