Although merchants weren't exactly happy with the idea of a credit card that could be used everywhere â fewer people would be using their individual store credit cards â McNamara's cards caught on quick with customers, expanding to 20,000 users in the first year.
Smoking can cause cancer and then block your body from fighting it: 1  Poisons in cigarette smoke can weaken the bodyâs immune system, making it harder to kill cancer cells. 2  Poisons in tobacco smoke can damage or change a cell's DNA.
smoking and lung cancer by far the biggest cause of lung cancer is smoking although some people who have never smoked get lung cancer smoking causes more than 8 out of 10 cases 86 % the more cigarettes you smoke the more likely you are to get lung cancerbut the length of time you have been a smoker is also importantigarette smoking is the main cause of lung cancer but pipe and cigar smokers are still much more likely to get lung cancer than non smokers passive smoking breathing in other people s cigarette smoke increases the risk of lung cancer but it is still much less than if you smoke yourself