Cystic fibrosis - causes a mucus build up on the lungs, that coats the breathing tubes
Answer:
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Explanation:
From what i heard, when carbon monoxide is in a person's blood (smoker or non smoker) it can kill you, it is a sign of poison in your blood. With smokers it is worse because they are smoking something that has a high content of carbon monoxide which can cause heart problems, lung cancer, birth defects, etc. So thats what i think