What We DO and DON'T Know About Vaping What Does Vaping Do to Your Lungs? Johns Hopkins Medicine ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, Many people turn to vaping, thinking it's a safer alternative to smoking. However, this belief is misleading and potentially harmful. This #NationalLungMonth, let us acknowledge that vaping is not risk free and can