Cigarette smoking and breast cancer. Instead, since individuals with an inherited cancer syndrome are born with only one good copy of the cancer associated gene, they are more likely to get cancer. Enter Your Email Here! Every time a cell divides it has to copy all of that DNA so that it can make daughter cells with a full complement of DNA. Cancer Epidemiol Biomarkers Prev ; 16 4: Bupropion seems to reduce both withdrawal symptoms and the urge to smoke by affecting the neurotransmitters dopamine and norepinephrine. Preventive medicine cause of cancer In cancer: Tobacco statistics by age. Newhouse explains. When a regular tobacco user successfully quits, the risk of cancer decreases, though adina lyrics to the level of someone who has never smoked.