GoKawiilStudy of 4.5 million adults links vaping after quitting smoking to higher lung cancer risk
Researchers at Seoul National University, publishing in Nature Medicine, analyzed health data from over 4.5 million Korean adults divided into smokers and short- or long-term quitters. Former smokers who switched to daily vaping developed lung cancer at a rate 56 percent higher than those who quit all nicotine products, and had a 91 percent higher lung cancer death rate.
GoKawiil's interpretation of the reporting above, not reported fact.
The findings challenge the common assumption that vaping is a safe off-ramp from cigarettes, suggesting it may still carry serious cancer risks for former smokers. The study does not cover people who vaped without ever smoking, so its implications for that growing group remain unclear. The researchers themselves note that solid evidence on e-cigarettes and lung cancer specifically has been scarce until now.
- Study examined over 4.5 million Korean adults using 2018 national health survey data.
- Former smokers who vaped daily had 56% higher lung cancer rates and 91% higher lung cancer death rates than those who quit entirely.
- The study did not address cancer risk for people who vaped without a prior smoking history.
Source: futurism.com — Joe Wilkins, 2026-10-16
Published there as: “Vaping Strongly Linked to Lung Cancer”
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