Vaping Versus Smoking: Are Electronic Cigarettes the Savior? Arteriosclerosis, Thrombosis, and Vascular Biology Switching to E Cigarettes: Healthier Alternative or Hidden Risks? The Health Effects of Nicotine Use on the Brain and Body Vaping has become common, but it's important to know what you're inhaling. Many e cigarettes contain nicotine, heavy metals like nickel and lead, and chemicals that can harm your lungs and overall health. Vapes aren't just harmless mist or vaporthey can contain addictive nicotine and chemicals that can harm your lungs, brain, and overall health. Knowing the facts = making informed choices. It's important to What Does Vaping Do to Your Brain? University of Nevada, Reno