Pupil's concern over GeekBar vape craze making children 'cough up blood' My London They Lied. We Know. #EscapeTheVape Cambria Quartz Surfaces If you don't vape, don't start. Most e cigarettes contain nicotine, which is highly addictive and harmful to your health, especially for teens, young adults and those who are pregnant. Learn more about Are elf bars geek bars bad for you? leafie Nampons Nosebleed Stoppers School Nurse Supply Worried your teen might be vaping? Watch for these warning signs. While these don't always mean your kid is vaping, having an open and honest conversation can make all the difference.