How E Cigarettes Affect Your Body Best Disposable Vapes And Alternatives Vaped Vaping may not contain tobacco, but that doesn't mean it's harmless. E cigarettes still expose your lungs to nicotine and a mix of chemicals that have been linked to lung disease, heart issues, Vapes And Cancer New research from UNSW Sydney confirms vaping is likely to cause lung and oral cancer. The study shows these devices pose a direct risk, regardless of tobacco history.