Vaping likely to cause cancer: New research warns A major review led by researchers at UNSW Sydney says nicotine vaping may be linked to both lung cancer and oral In recent years, the number of e cigarette users worldwide has sharply increased, with many believing that vaping is less harmful than smoking traditional cigarettes. However, health experts are warning of its negative Impact of vaping on respiratory health The BMJ E cigarettes: Facts, stats and regulations Researchers Find Toxic Metals in E Cigarette's Johns Hopkins Bloomberg School of Public Health