 When it comes to vaping, the truth can get clouded. So let's make it clear. Vaping is not safe for youth. Because vaping can put microscopic particles into your lungs. And dangerous things like metals into your body. And nicotine, which can harm a person's brain development through their mid-20s. With appealing flavors, high nicotine levels, and lots of promotion on social media. Many kids think vaping is harmless, but it's not.