You've Heard About E-Cigarettes, But What's Their Deal?

Fewer people are smoking now than ever before, but that doesn't mean we should let our guard down.

It used to be that cigarettes were shamelessly advertised to everyone, including kids.

Celebrities were in on it too.

But now it's 2014, and cigarettes are tightly regulated, their advertising highly restricted. So we're good, right? Not exactly. Sometimes, the more things change, the more they stay the same. Where cigarettes once preyed on our youth, now e-cigarettes have come to fill the void. You can't make up the following images:

Some folks contend that e-cigarettes are OK because they don't have the tar. Others, like the Centers for Disease Control, are concerned that kids in high school and middle school are using these products at alarming rates.

So are e-cigarettes good news or bad news? Let's listen to CNN's Dr. Sanjay Gupta ask Dr. Thomas Frieden, director of the CDC.

But actually, have you seen commercials for e-cigarettes? What is the lady on the left even doing?