From 2021, Australians will no longer be able to buy nicotine-containing e-fluids, without both a prescription and someone licensed to import it for them, raising fears many will go back to smoking.
Even as evidence of its adverse effects emerges, vaping is growing more popular among young people.
The study found that ex-smokers had four times the amount of "normal" protective cells than smokers.
E-cigarettes may help smokers quit but research is still limited.
Using prescription drugs or over-the-counter gums, mints or patches won't increase your chances of quitting smoking a year later, according to new study.
New research suggests most smokers don't want to quit using nicotine replacement, they want to do it on their own.