Can vaping damage your lungs? What we do (and don't) know Harvard Health Be A Vape Free Teen Cecil County Health Department Tobacco can be bad for your health even if you are not the one smoking. Breathing in the smoke can lead to many health problems. Vaping is also bad for you. E cigarettes Health Effects Vaping Information, Solutions & Interventions Toolkit Stanford Medicine E Cigarettes, Vapes, and other Electronic Nicotine Delivery Systems (ENDS) FDA