![a cigarette retail display](https://digitalmedia.hhs.gov/tobacco/hosted/images/educator_hub/vaping_101_vaping_facts-1.jpg)
Most e-cigarettes CONTAIN NICOTINE, the same highly addictive chemical in traditional cigarettes.
About ONE IN TEN HIGH SCHOOLERS
currently use e-cigarettes.
![teens hanging out on school steps outside](https://digitalmedia.hhs.gov/tobacco/hosted/images/educator_hub/vaping_101_vaping_facts-2.jpg)
![a galaxy swirl superimposed on a teen's profile](https://digitalmedia.hhs.gov/tobacco/hosted/images/educator_hub/vaping_101_vaping_facts-3.jpg)
TEENS ARE MORE SUSCEPTIBLE TO NICOTINE ADDICTION than adults because their
brains are still developing.
Many e-cigarettes used by teens are
SHAPED LIKE USB FLASH DRIVES, PENS, OR EVEN WATCHES, which makes them easy for students to hide at school.
![school supplies and electronics](https://digitalmedia.hhs.gov/tobacco/hosted/images/educator_hub/vaping_101_vaping_facts-4.jpg)
![a pair of hands, holding a bundle of cigarettes in one and a vape pen in the other](https://digitalmedia.hhs.gov/tobacco/hosted/images/educator_hub/vaping_101_vaping_facts-5.jpg)
Despite what some kids think, vaping is not safe. In fact, vapes can contain AS MUCH NICOTINE AS A WHOLE PACK OF CIGARETTES.
Teens who vape are more likely to start
SMOKING CIGARETTES.
![doctors looking at brain imaging on a computer monitor](https://digitalmedia.hhs.gov/tobacco/hosted/images/educator_hub/vaping_101_vaping_facts-6.jpg)
Some e-cigarette aerosols can contain chemicals, such as
formaldehyde, as well as the drug nicotine, which can harm your brain and cause addiction.
![a hand with a pen writing a word cloud featuring formaldehyde as the largest term](https://digitalmedia.hhs.gov/tobacco/hosted/images/educator_hub/vaping_101_vaping_facts-8.jpg)