Are E-Cigarette Liquids Safe?

The flavorings added to vape liquids are considered safe for ingestion, but what happens when we breathe them in? Learn what researchers can and can't say about the safety of vaping in this episode of BrainStuff.Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htmAnd to learn about your ad choices when listening to podcasts, visit https://www.howstuffworks.com/privacy.htm#ad-choices