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 WellnessWednesday Is Vaping Safer than Smoking? Why this May Not be the Case In a bid to quit smoking, many are turning to vaping instead. But is it truly safer? If you've Lung Injury Associated with E Cigarette or Vaping Product Use Pediatric Annals What Does Vaping Do to Your Lungs? Johns Hopkins Medicine