Smoked from age 15 to 23 years old, now im 61, almost 40 years of no smoking, what are my lung cancer risks? are my odds higher? im always very worried about it! i would appreciate some opinions on this! thanks in advance?

Life long smokers have a 1 in 10 chance to develop lung Cancer, so 90% remain free of Cancer. When you stop smoking, the risk of having lung cancer comes down every year. Having left smoking for 40 yrs reduces your risk close to non-smokers. So you do not need to worry. But remember non-smokers also have a very small risk of developing lung Cancer, but it is close to less than1%.