The research by University College London surveyed nearly 6,000 smokers and found a fifth had quit with the aid of e-cigarettes.

That was 60 percent higher than those who did not use the devices.

Researchers said they were ‘cautiously positive’ about the role e-cigarettes could play, as per reports.

"E-cigarettes could substantially improve public health because of their widespread appeal and the huge health gains associated with stopping smoking," said Professor Robert West, lead researcher of the study published in the journal Addiction.

"Some public health experts have expressed concern that widespread use of e-cigarettes could re-normalize smoking,” West said.

"Smoking rates in England are declining, quitting rates are increasing and regular e-cigarette use among never smokers is negligible," West added.


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