i got another question... what about second hand smoke?? is it worse on a person then just smoking the cigarettes your self?? im 38 years old and never had a cigarette in my mouth but i dont think i would really want to see what my lungs look like... i have been around smoke all my life and im sure my lungs look just like anyone that smokes..some times i think i should just take up smoking but then think better of it..