Research from the University of New South Wales in Sydney has provided the strongest evidence to date that vapes and e-cigarettes can cause lung and oral cancer, due to pre-cancerous changes like DNA damage. Is this a clear sign for health regulators to take stronger action against vaping? What does this mean for those who are using e-cigarettes for smoking cessation? We find out from Dr Muralli Munisamy, Medical Director of the National Cancer Society of Malaysia.Image Credit: Shutterstock