E-cigarette flavors are toxic to white blood cells, warn scientists

A new study adds to growing evidence on the harmful health effects of e-cigarettes. The study finds that exposure to commonly used e-cigarette flavoring chemicals and liquids can cause significant inflammation to monocytes, a type of white blood cell. Moreover, many flavoring compounds are toxic, with cinnamon, vanilla and buttery flavors among the worst. It also finds that mixing e-cigarette flavors has a much worse effect than exposure to just one.