Well I use to smoke, but quit about 10 years ago, though I never drink soda, I prefer unsweetened ice and hot tea for 90% of my water consumption, though I drink juice as well. While being smart and eating healthy is good for most people, there are no promises of a longer lifespan. You're assuming you'll live longer based on your diet and habits, but I knew somebody that smoked and drank all their life and died at 96 years old, and someone else who was a vegan, exercising healthnut that had a heart attack and died at 45 (both were members of the same family), so what you choose to do for habits is no guarantee on health and long life.