Many smokers switched to electronic cigarettes hoping they would be less harmful than tobacco cigarettes. But a new study at the University of Connecticut found that e-cigarettes are potentially as harmful as tobacco cigarettes.
Using a new testing device, they found that e-cigarettes with a nicotine-based liquid could damage DNA as much as unfiltered cigarettes. Cellular mutations caused by DNA damage can lead to cancer.
The researchers also discovered the vapor from non-nicotine e-cigarettes caused as much DNA damage as filtered cigarettes, probably due to the numerous chemical additives in the vapors.