What You Need to Know About E Cigarettes and Vaping NYC Health + Hospitals We break down the key differences between traditional cigarettes and e cigarettescovering: 1 Their compositions and ingredients. 2 The health risks associated with both. 3 Nicotine levels and addiction potential. 4 The impact Vaping 101: How Do E Cigarettes Work? Vaping Devices (Electronic Cigarettes) DrugFacts National Institute on Drug Abuse (NIDA)