Using high-nicotine e-cigarettes may boost vaping and smoking in teens
![Teens vaping](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2017/10/102417_ac_vape_feat.jpg?fit=860%2C460&ssl=1)
MORE ISN’T BETTER Teens who vaped liquids containing higher concentrations of nicotine reported heavier and more frequent smoking and vaping six months later.
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