Unlikely . . .: But why risk it? After all, if one won't, what about two? three? four? We have no idea how many (times) you can smoke before damage is permanent. Some have genetic predisposition that greatly increases risk of bad things. I can't answer for any given individual as to whether once, twice, three times, etc will cause permanent harm. But why take unnecessary chances?
Answered 7/18/2017
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