What are the respiratory effects of e cigarettes? The BMJ Vaping isn't harmless. While e cigarettes don't contain tobacco, nicotine is highly addictive and can harm brain development. E cigarettes can cause EVALIa serious lung injury linked to vaping. Symptoms like cough, chest Vaping vs. Smoking: Health Risks and Long Term Effects AOI Vaping suspected for health consequences, needs regulation Myth: Vape & heated tobacco products are safer alternatives to cigarettes. Truth: They are harmful products; they contain nicotine & toxic substances that can have harmful effects & long term consequences on brain Vaping puts health at risk. Nicotine in e cigarettes is highly addictive and especially harmful for youth. https: teen.smokefree.gov quit vaping