Talking to Your Teen Who Vapes University of Rochester Medicine Vaping: Understanding the Risks and Impacts on Health Secondhand smoke and aerosol Health Effects of Tobacco Use FDA If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs. Vaping Harmless. Vape aerosol contains toxic chemicals like formaldehyde, arsenic, lead, chromium, and nickel. They damage lungs. They harm developing brains. They raise cancer risks. We