My Grandfather smoked from when he was 15 to when he retired at 65. Looked at the size of his pension, looked at the cost of a packet of fags. Quit cold.
One of my colleges discovered the hard way that he had a choice: Quite smoking or die.
They can do it, you can do it.
To misquote Nitcheze ( I think I spelt that right) Ubermersh conquer them selves, Untermersh don't.