New review highlights potential risks and impact of e-cigarettes

One of the most comprehensive looks to date at the evidence regarding the human health effects of e-cigarettes has shed light on the risks and potential impact of vaping.

Led by the US National Academies of Sciences, Engineering and Medicine, the project examined more than 800 peer-reviewed scientific studies, reaching dozens of conclusions about a range of health impacts.

It was broadly concluded that although e-cigarettes are not without health risks, they are far less harmful than conventional cigarettes, with fewer numbers and lower levels of toxic substances.

As such, they were suggested as being effective aids for adults to quit smoking, even though their long-term health effects are not yet clear. However, among young people – who generally use e-cigarettes at higher rates – there was substantial evidence that vaping may increase the risk of transitioning to smoking conventional cigarettes.

David Eaton, chair of the report committee and dean of the Graduate School of the University of Washington, said: "In some circumstances, such as their use by non-smoking adolescents and young adults, their adverse effects clearly warrant concern. In other cases, such as when adult smokers use them to quit smoking, they offer an opportunity to reduce smoking-related illness."

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