Many teens don’t know they are vaping nicotine

(HealthDay)—As e-cigarette use soars in high schools across America, new research shows many people don’t understand the amount of addictive nicotine they’re inhaling with every puff.

In a new survey, many teens said they regularly used e-cigarettes, but swore they only vaped nicotine-free products.

However, urine tests for a “marker” of nicotine use came up positive 40% of the time in this same group of vapers, the researchers reported.

“Many of our participants were unaware of the nicotine content of the e-cigarette products they were using,” concluded a team led by Dr. Rachel Boykan, a pediatrics researcher at Stony Brook University in Stony Brook, N.Y.

That could mean even more lifelong nicotine addictions arising in the young, including many who already believe vaping to be “harmless”…