Daily Talker: How Should E-Cigarettes Be Regulated?

As electronic cigarettes grow in popularity as an alternative to smoking, so do concerns about teens who use them.

D.J. Wilson of the Massachusetts Municipal Association says the self-reported rate of e-cigarette use by high schoolers doubled between 2011 and 2012. "For kids, it's cheaper than buying a pack of cigarettes," said Wilson.

Right now, there is no national regulation on the sale of e-cigarettes, although some states and cities do limit their sale. At Vape Daddy's, an e-cigarette shop in Newton, no one under 18 is allowed inside.

Justin is a 21-year-old who used to smoke more than 2 packs of cigarettes a day, but is now using e-cigarettes instead. "I got my breath back. I can run as far as I want, and I won't be coughing up a storm."

Still, the lack of extensive studies has some experts concerned. "The bottom line is we don't know what we don't know about nicotine exposure from these new products."

What do you think? How should electronic cigarettes be regulated? Share your comments below, and watch for them on WBZ News in the Morning from 4:30 to 7:00 a.m.