# Health risks of tobacco and electronic cigarette use

> Developing situation record from CLSTR: https://clstr.news/situations/20261031-health-risks-of-tobacco-and-electronic-cigarette-use
> Updated: 2026-10-31T13:05:20.000Z. Sources: 3. Developments: 2.

Medical research and expert warnings have highlighted significant health risks associated with tobacco and electronic cigarette use. A study involving over 4.5 million adults in South Korea indicated that former smokers who switch to daily vaping face a 56% higher risk of developing lung cancer compared to those who quit nicotine entirely, with the risk of death from lung cancer approximately doubling.

Researchers noted that e-cigarette aerosols may contain harmful substances such as formaldehyde, acetaldehyde, and heavy metals like nickel and lead, which can damage lung tissue. Experts further clarified that electronic cigarettes produce a chemical aerosol containing nicotine, nitrosamines, and toxic compounds rather than simple water vapor. Heating flavorings and sweeteners can create carcinogens like acrolein, potentially leading to lung collapse, fluid accumulation, and heart attacks.

Additional concerns have been raised regarding illegal additives in certain electronic cigarette cartridges, including THC and anesthetics like etomidate, which may cause loss of balance or altered consciousness. Furthermore, tobacco use remains a primary factor in various conditions, including throat cancer, COPD, cardiovascular diseases, and an increased risk of breast cancer in women.

## Timeline

### 2026-10-31: Tobacco and electronic cigarette use linked to increased cancer and respiratory risks

Medical experts warn that tobacco and electronic cigarettes increase risks for breast, lung, and throat cancers, while electronic cigarette aerosols contain toxic chemicals and potential illegal additives.

3 sources. https://clstr.news/cluster/tobacco-and-electronic-cigarette-use-linked-to-increased-cancer-and-respiratory-risks

### 2026-10-15: Lung cancer risk rises 56% for former smokers who switch to vaping

A major study finds former smokers who use daily vapes face a 56% higher lung cancer risk, while experts warn of the complex physical and emotional challenges of nicotine withdrawal.

5 sources. https://clstr.news/cluster/e-cigarette-use-linked-to-increased-lung-cancer-risk-in-former-smokers

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Cite as: Health risks of tobacco and electronic cigarette use. CLSTR, https://clstr.news/situations/20261031-health-risks-of-tobacco-and-electronic-cigarette-use