How Long Do You Stay High After Hitting A Pen Vaping weed is popular, but there are many unknowns about its safety : NPR Teen Vaping: What Parents Can Do Children's Hospital Colorado Kids Health Info : Vaping and e cigarettes How Vaping Nicotine and THC May Increase Depression, Anxiety in Teens Vaping is banned in our schools. Did you know: Most vapes contain high levels of nicotine (often without the person knowing). The nicotine in one e cigarette can equal to 50 cigarettes