[chemgear]

https://www.cnn.com/2018/05/17/healt...ung/index.html

E-cigarettes heat liquid and turn it into vapor, which a user inhales and then exhales in a large puffy cloud. The liquid is known as e-juice, and it contains flavorings, propylene glycol, glycerin and often nicotine -- though many users are unaware of this final addictive ingredient.

The hostess had been vaping for only about three weeks last year when she developed symptoms bad enough to send her to the emergency room of the University of Pittsburgh Medical Center.

Not only did the hostess require a breathing machine, she needed tubes inserted on both sides of her chest to drain fluid from her lungs.

Ilona Jaspers, a professor in the Departments of Pediatrics and Microbiology and Immunology at the University of North Carolina at Chapel Hill, said the case study suggests that e-cigarettes will cause negative health consequences that had not been seen with conventional cigarettes.

The rapid spread of vaping was highlighted by a 2016 report from the US surgeon general that cited a 900% increase in e-cigarette use by high school students from 2011 to 2015. Meanwhile, the 2016 National Youth Tobacco Survey noted that 1.7 million high school students said they had used e-cigarettes in the previous 30 days.

Sommerfeld agreed. Using e-cigarettes "normalizes" smoking, she said, and is linked to an "increased likelihood of using typical cigarettes or tobacco products." For this reason, vaping and electronic cigarette use should be included in discussions of "risky behavior" with teens, she said.