The Dangers of Vaping: Six Facts to Know Holland Hospital When someone vapes around others they expose them to 'second hand aerosol'. But what happens to that aerosol then? Does it disappear or is it like cigarette smoke and stays around, sticking to The 101 on e Cigarettes Infographic American Heart Association You've probably noticed it. Step outside lately and cigarettes are back in rotation. Vapes had their moment. Now they're starting to feel a little overdone. Cigarettes never changed and that might be 2 popular vape flavors may increase inflammation in brain, lungs If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs.