Silicon Valley e-cig startup Juul 'threw a really great party' to launch its devices, which experts say deliberately targeted youth

Business Insider

Bad habits are tough to break.

The Juul, an e-cigarette that delivers a powerful nicotine hit equal to the amount in a pack of cigarettes, may be one of the toughest.

Adult customers say they find the high nicotine content as satisfying as conventional cigarettes, but the device also has a growing number of teen fans, whose developing brains are uniquely vulnerable to addiction.

The Juul's surging popularity among high schoolers has led public-health advocates and researchers to issue alarming warnings. Young people who vape may be as many as seven times more likely to smoke regular cigarettes than teens who never try an e-cig, according to several peer-reviewed studies.

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