E Cigarettes and Vaping OHSU Pod Compared To Vape Vs Cigarettes: Which Is Worse For Your Health, Nicotine Vaping Equals How Many Cigarettes 5 Vaping Facts You Need to Know Johns Hopkins Medicine Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs. Do you know what's in a vape? Vaping isn't just vapor. It's an aerosol filled with nicotine and chemicals that go deep into your lungs and straight into your bloodstream. Many vapes contain: Highly addictive nicotine