E cigarettes a tool to reduce inequalities in smoking? UCL Institute of Epidemiology and Health Care Blog Vaping and E Cigarettes Causing Outbreak of Respiratory Illnesses, Other Severe Health Problems, and Deaths Sommers Schwartz E cigarettes & Vaping Positive Choices The Dangers of Vaping and Oral Nicotine Use Among Youth Vaping has become common, but it's important to know what you're inhaling. Many e cigarettes contain nicotine, heavy metals like nickel and lead, and chemicals that can harm your lungs and overall health. Vaping nicotine and mental health