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, Young man gamer inhaling of a vapor with electronic cigarette.Vape flavor liquid chemicals.Use of e cigarettes in the home.Smoking and vaping negative Stock Photo Alamy How to Inhale When Vaping 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