4. nicotine causes addiction and A. acts as a stimulant B. is a carcinogen C.... Please Help . Health?

You have stated some four cases in the worst case senarios...With three substances abuses and the effects of stoppages on these drugs...
What really are your questions in relationship with them?
Really,, what are the gists of your questions?
Really, where are your questions?

You ought to have a question....
Otherwise, how can I respond to your statements?

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