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Common e-cigarette flavourings have the potential to cause harm, according to a new study which calls for much more stringent safety testing as smoking alternatives’ popularity booms. Greek researchers looking at common ingredients in e-cigarette liquids found that mice exposed to tobacco flavouring in the vapour produced higher levels potentially harmful molecules and inflammation than in mice exposed to traditional cigarettes . Long-term inflammation of the lungs is linked to the development of respiratory conditions including COPD , emphysema and even certain cancers. The study, published in the American Journal of Physiology , compared various e-cigarette additives with conventional tobacco cigarette smoke. Full story

11 October