I can do it at home, the smell won't linger': Do youths who vape know what they're inhaling? CNA Lifestyle Have you ever breathed in secondhand vapor from a vape? What exactly are you inhaling? It turns out it's a lengthy list of chemicals. FULL STORY How To Smoke A Vape Like A Pro SOBERING SIMULATION SHOWS WHAT REALLY HAPPENS TO YOUR BODY WHEN YOU INHALE FROM A VAPE. The "harmless" alternative to smoking is being exposed in a terrifying new light as medical simulations reveal Vaping is especially harmful to individuals under the age of 25, as their brains are not yet fully developed. The chemicals found in vapes can cause problems with memory and retaining information,