A study published earlier this month shows that middle school and high school students who smoke e-cigarettes also are more likely to smoke tobacco cigarettes. While the study didn't prove cause and effect, it does show a strong link between the two habits.

Further research shows that 70% of adult smokers start before age 18.

The growing popularity of e-cigarettes -- among adults as an aid to quit smoking and among teens -- has turned them into a $1.5 billion-a-year industry. Revenue could grow to $3 billion in 5 years.

Research into their potential effects on health, though, is still in the early phases. There's enough concern that the FDA is considering regulations. ...

Source: MedicineNet Lungs General
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