I catch myself inhaling from time to time now. It happens more with smoother and nicotine light tobaccos. One of the reasons "Light" cigs don't work is the body will automatically adjust for a deeper draw and inhale to get the same amount of tobacco. I have to stay mindful when I smoke and use stronger blends, as well as retrohale quickly to get the Nic beast satisfied. Smoking brown ropes helps a lot. I haven't smoked cigarettes in months and my lungs are much better for it. My nose on the other hand...