Which is dangerous smokeless tobacco or cigarette?

I know both of them are really harmful to our lugs and brain. One side smoking make you feel tired after you take it which can cause less efficiency while working and also makes you cough after a long time if not quit. On the other hand, smokess tobacco can cause lung cancer, gum cancer but at least it won't hamper... show more I know both of them are really harmful to our lugs and brain. One side smoking make you feel tired after you take it which can cause less efficiency while working and also makes you cough after a long time if not quit. On the other hand, smokess tobacco can cause lung cancer, gum cancer but at least it won't hamper your efficiency of working. This the infomation I have and I want to know more so need your help. Which one do you think is more dangerous and defective for health.
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