Vaping likely to cause cancer, Canterbury University study shows RNZ News E cigarettes accelerate lung colonization of breast cancer cells. A. Download Scientific Diagram Vaping: Understanding the Risks and Impacts on Health Many people believe that vaping is less harmful than smoking, but that's a common misconception. In fact, in addition to nicotine, vapes can contain toxic chemicals that could be linked to cancer, Vaping likely to cause cancer: Australian study