Smoking and vaping are often compared, but neither is harmless. While they work differently, both can expose the lungs to addictive nicotine and harmful chemicals that impact breathing and overall health. Smoking Is Vaping Bad for Your Allergies? Houston ENT Doctor Sobering simulation shows what really happens to your body when you inhale smoke from a vape Vaping: The Health Risks and How to Quit HelpGuide.org