How Long Can Nicotine Stay in Your System? Nicotine use among young people is evolving. New research shows more youth are using multiple nicotine products at the same timemost commonly cigarettes and e cigarettes, with a growing rise in combining vapes Smoking cigarettes has long been proven to cause severe lung damage, including chronic obstructive pulmonary disease (COPD), emphysema, and lung cancer. Over time, cigarette smoke destroys lung tissue, fills airways with tar, What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Thirdhand Vapor from E cigarettes Damages the Lungs of Mice Thirdhand Smoke Resource Center Cigs in a Pod