Switching from smoking to vaping dramatically reduces cancer risk Dr Colin Mendelsohn Does Vaping Cause Lung Cancer? Vaping Is Likely To Cause Cancer, Major New Aussie Study Finds: 'Only A Matter Of Time' Understanding Vaping and Lung Cancer: Risks and Insights Many students believe that vaping harmless, which is far from the truth. Vape pens can contain potentially harmful substances such as chemicals linked to lung disease, cancer causing chemicals, heavy metals such as