Because the Dr told him that it was cleaner...I have heard the same story from a number of people a number of times. So I assume that this happened?
Not only has the medical field changed, but cigarettes have changed too. They have gone from being some tobacco wrapped in tissue paper to a cocktail of tobacco and over 500 different chemicals, still wrapped in tissue paper. They now contain everything from banana oil to concrete and most of the stuff you can't even pronounce the name.The real question is how long ago was this? It is interesting to see how the medical field has changed in such short times!