New medical research is raising concerns about possible links between vaping and bronchiolitis obliterans also known as popcorn lung, a rare and irreversible lung disease. Health experts say more long term Vaping's hidden risks are coming to lightraising serious concerns about long term lung damage. Vaping Related Illness and Lung Disease NEJM Vaping e cigarettes shown to be more harmful to lungs than smoking cigarettes new study Express.co.uk