Use of vapes (e cigarettes) among young people in Great Britain ASH Some E Cigarette Flavors May Be More Harmful Than Others The Atlantic 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 Vaping Devices (Electronic Cigarettes) DrugFacts National Institute on Drug Abuse (NIDA) e cigarettes flyer from Fallon Health