I wonder how Weird Al does it without problems.
Discussion
A lot of people get away with a lot of unhealthy things for a really long time. I know people that smoked every day to ~90+ years of age with no issues, but that doesn't mean smoking is healthy.
Vegans who cheat once in a while are also significantly healthier than those who don't.
Yep! My grandpa smoked and drank all his life with no issue. My dad smoked and got tongue cancer.