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. The Effects of Vaping on Oral Health E Cigarettes: A New Threat to Cardiovascular Health Knowledge Action Portal on NCDs Army issues public health alert on vaping dangers > Joint Base San Antonio > News The impact of e cigarettes versus traditional cigarettes on long term cardiopulmonary outcomes American Journal of Physiology Heart and Circulatory Physiology American Physiological Society e cigarettes HSE Health and Wellbeing