Did you know? Some vape products have been tied to seizures and even found laced with fentanyl. One puff from a contaminated cartridge can be deadly. Keep yourself and our Vaping Causes Lung And Oral Cancer, Over 100 Studies Across The World Analysed WION Are vape pens, or e cigarettes, ever the better option? Ohio State Health & Discovery DMT Vape Pens: Risks, benefits, and therapy Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs.