E cigarettes: safer than smoking, National Academies report finds Vox CBD Vape Gives Me A Headache CBD Oil King NHS Health Scotland: E cigarettes "definitely less harmful than smoking tobacco" The Online Citizen E cigarettes may not contain tobacco, but they still deliver nicotine, a highly addictive substance that can harm the developing brain, increase blood pressure, and lead to long term addiction. Many also contain toxic Study: E cigarettes are 95 per cent less harmful than tobacco India Today Vaping and health