Marijuana and Your Lungs: Is Vaping Safe for People with COPD? The Impact of E Cigarettes and Asthma: What You Need to Know 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 Sobering simulation shows what really happens to your body when you inhale from a vape. , A "disturbingly realistic" 3D animation has gone viral, pulling back the curtain on the invisible damage