five cigarettes a day Chain-smoking Indonesian boy, 6, praised by parents for cutting down to 5 – New York Daily News 5 cigarettes a day for
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Second, whenever possible, studies should cover a dose range, which includes a realistic human exposure dose

Amber - for comfort and calling on the truth
12 hours After Quitting Carbon monoxide level in your blood drops to normal
Someone who has smoked only one joint every day for six months may not experience withdrawal symptoms acute enough to force them to start using again

I think its needed