Smoking

How can anyone still smoke? I've been working on a book chapter about longevity and health. One of the topics I cover is the prospect for future gains in life expectancy in the US and the factors that are retarding those gains. Smoking and obesity are at the top of the list. The health consequences of smoking are SO CLEAR. I can't imagine that we still allow tobacco to be produced in this country. My husband smokes cigars. They smell. The house smells. The car smells. He smells. That is just the aesthetic part. I shudder to think what it is doing to the lungs of my kids. For the most part he keeps it outside, but the weather is turning cooler and the windows will be closing. I don't understand the attraction....or addiction (?)