Willie Nelson's lungs aren't quite what they use to be. Check out this interview where Willie makes the shocking revelation that he no longer smokes weed. He said, "I've abused my lungs quite a bit, so breathing is more difficult these days and I have to be careful." Just because Willie isn't smoking anymore doesn't mean he's cutting the habit altogether. There are other ways to partake (as seen on his website Willie's Reserve) and according to his publicist that's what he'll be doing.