Is Vaping Better Than Smoking? American Heart Association Marijuana and Your Lungs: Is Vaping Safe for People with COPD? Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Does Vaping Cause Lung Cancer? What science says about vaping risks The Examination Will vaping bans do more harm than good? Some public health experts say yes.