for how long do you have to smoke to get cancer
Doctors have discovered it depends on your genes and other environmental factors as to how long before you are at risk. Some people have a gene that means that they are very much at risk of developing lung cancer. This could mean that only 6 months worth of smoking will seal their fate.Others could smoke for 60 years and still not get it.here also seems to be a very high incidence of emphysema even among non-smokers (confirmed, 2nd highest emphysema deaths in the world!). Some people can smoke 40 cigarettes a day for 60/70 years & never get cancer. There is no set time frame for when cancer will occur or if you will get cancer.