The emerging evidence suggests vaping may cause lung and oral cancers
In short: For years, e-cigarettes were marketed as a safer alternative to smoking. Nevertheless, a detailed recent analysis from UNSW Sydney scientists indicates that vapes containing nicotine may trigger lung and mouth cancers, contesting the enduring idea that they are a safe alternative.
A significant study headed by UNSW Sydney, appearing in Carcinogenesis, found that e-cigarettes using nicotine probably induce cancers in the mouth and lungs. By synthesizing evidence from clinical research, animal studies, and laboratory investigations into chemicals generated by e-cigarettes, the research team found remarkably consistent findings across different scientific disciplines. This includes specialists in pharmacy, epidemiology, and thoracic surgery from institutions such as The University of Queensland and Royal North Shore Hospital.
Although previous studies often viewed vaping as a route to smoking tobacco, this assessment emphasises that e-cigarettes might independently trigger cancer. The researchers describe the findings as a qualitative assessment; they do not yet have a numerical estimate of the specific cancer risk or burden, as precise figures will require much longer-term studies. However, the evidence regarding carcinogenicity is described as one of the most definitive determinations that vapers face an increased risk compared to non-vapers.
The health implications extend beyond cancer. Recent studies suggest that vaping may impair the body's ability to fight lung infections. Furthermore, the high efficiency of e-cigarettes at delivering nicotine—often at levels comparable to or higher than tobacco—makes them an enticing gateway to addiction for children and non-smokers. The presence of harmful substances like heavy metals, such as lead, and toxic carbonyls adds to the complexity of the risk, as these substances are known to be pro-inflammatory and immunosuppressive.
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Sources
- Summary by Intellect · source: Yet More Evidence That Vaping Is Probably Terrible | SciShow News
- Also: Major review finds vaping likely causes lung and oral cancer
- Also: Vaping in childhood has bigger health risks than we’d thought
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