By Sean Dowling, Buzz60
The U.S. Surgeon General is urging young people to stop using e-cigarettes, calling them a public health threat in a new report.
The report says not enough research has been done to show e-cigarettes are harmless.
Surgeon General Vivek Murthy says too many teens are using them and no matter how it's delivered, nicotine is addictive.
The safety of e-cigarettes has been debated; most devices heat liquid nicotine to create a vapor, but because they don't have tar like traditional cigarettes, some say they're safer.
What can't be argued is that nicotine is bad for a developing brain.
Federal health officials say about 3 million young people use e-cigarettes, but it is illegal to sell them to minors.
The new report suggests the devices be on a list of indoor smoke-free policies.
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