Puffing: What Does It Mean and What Are the Risks? 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 It Bad If You Inhale Vape Smoke How to Vape in 5 Easy Steps: The 2026 Guide Article If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs.