5 Sketchy Things We Still Don’t Know About E-Cigarettes

The FDA has cracked down on e-cigs by asserting its regulatory power and proposing a ban on sales to minors

On Thursday, the U.S. Food and Drug Administration (FDA) flexed its regulatory muscles and extended its authority over more tobacco products, including the highly debated electronic cigarettes, or e-cigarettes. In the announcement, the agency said it now has jurisdiction over items that meet the statutory definition of tobacco products—which includes e-cigarettes, pipe tobacco, and hookah tobacco, among others. The FDA says it also plans to crack down on e-cigarettes by proposing a ban of their sale to people under 18 and by requiring health warnings on packaging.

The UK already has stiff regulations on e-cigarettes and some cities in the U.S., like Los Angeles, have bannedthem in several public places. The trouble with e-cigarettes is that they are so new, and there’s not enough evidence to definitively determine either how effective they are at helping people quit smoking—or the health risks associated with inhaling vaporized nicotine. Here are five things we are still scratching our heads over.

> READ FULL ARTICLE to learn about the facts of  electronic cigarettes FROM TIME