[Dion]

Originally Posted by personalfx

never thought I would hear someone recommend that I inhale 3000 chemicals including rat poison over food grade glycol/glycerine .. O.o

Read this...

But some scientists, including officials at the U.S. Food and Drug Administration (FDA), warn that too many questions remain about the safety of these products.

"This is the first evidence that just one (e-cigarette) use can have acute physiologic effects," said lead researcher Constantine I. Vardavas, of the Center for Global Tobacco Control at the Harvard School of Public Health.
For the new study, Vardavas and colleagues in Athens had 30 healthy smokers puff on an e-cigarette to see how it affected their airways.

The researchers found that after five minutes, users showed signs of airway constriction -- as measured by several types of breathing tests -- and of inflammation.

It is not known whether that short-term response could translate into health effects in the long run, including lung diseases like emphysema.
"More studies on the long-term effects are needed," Vardavas told Reuters Health.

But, he noted, if e-cigarettes trigger airway effects after just a few minutes, that raises concerns about repeated use of the products over time.

http://uk.reuters.com/article/2012/0...8041WB20120105