Recently, Cancer Research UK noted that “e-cigarettes are effective in harm reduction,” which has become a widespread consensus among public health agencies and researchers worldwide. At the same time, there is growing evidence that e-cigarettes can help smokers to quit.

“We encourage smokers to switch to e-cigarettes.” Linda Bauld, Professor of Public Health at the University of Edinburgh and Cancer Research UK’s prevention adviser, says, “Tobacco is responsible for many types of cancer, and using e-cigarettes to assist smoking cessation can reduce the possibility of cancer caused by smoking.”

In addition, Cancer Research UK also clarified the controversy over “gateway effect” of e-cigarettes. There is no evidence to show that e-cigarettes lead adolescents and non-smokers to smoke. In the UK, for example, the popularity of e-cigarettes has not affected the downtrend of smoking in youth.

In the United Kingdom, e-cigarettes have been democratized for ten years. As products are updated over the past ten years and public awareness and users grow, e-cigarettes are becoming more controversial.

Based on established scientific research, some facts have been explored: tobacco is the main culprit of cancer, e-cigarettes have harm-reducing effects and can help stop smoking; nicotine in e-cigarettes is addictive and should not be used by non-smokers, especially minors.