Think Before You Vape! Vaping isn't harmlesse cigarettes can contain nicotine, heavy metals, and harmful chemicals. Risks include addiction, lung injury, and heart issues. Protect your health and make informed choices! # No, there's still no evidence e cigarettes are as harmful as smoking Science The Guardian Smoking vs Vaping Which Is Worse? Confessions Vaping substantially less harmful than smoking, largest review of its kind finds King's College London