1.   And most smokers start when they are teen-agers.

2.   Anti-smoking groups have long accused tobacco companies of trying to win underage smokers, since studies have shown that most smokers started when they were teen-agers.

3.   Both Harwell and Groce said beginning smokers usually start with a smooth, mild cigar.

4.   But youth is where the focus must be because most smokers start smoking as teen-agers.

5.   Everyone in the tobacco debate agrees that reducing youth smoking would have major benefits because nearly all long-term smokers start as teen-agers.

6.   Health groups say that most smokers start using tobacco before they reach adulthood.

7.   Most smokers start smoking before adulthood when the prospect of illness and death in adult life seems remote.

8.   When a smoker starts puffing, a curtain of air from ducts keeps smoke from spreading to nearby seats.