Juul E Cigarettes Gets Friendlier TreatmentAnd AuthorizationFrom New FDA Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs. The Dangers of Juuling National Center for Health Research The FDA's Juul Ban May Not be a Pure Public Health Triumph Why is vaping so popular? Devices are sleek and can be highly addictive. Vox