Vaping Nicotine = Brain Poison for Teens Sometimes when people vape for the first time they can feel quite unwell and, in some cases, they can actually be sick. This is due to the nicotine they're ingesting and is Lung Damage From Vaping Resembles Chemical Burns, Report Says The New York Times Vaping increases your risk of seizures, typically within 24 hours of doing it. Don't let vaping harm your health.