E cigarette flavors are toxic to white blood cells, warn scientists ScienceBlog.com 2 popular vape flavors may increase inflammation in brain, lungs Electronic cigarettes cause much less inflammation than tobacco Prevention Observatory of the Montreal Heart Institute 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 Harvard study finds lung damaging toxins in popular e cigarette products PhillyVoice Chronic electronic cigarette exposure in mice induces features of COPD in a nicotine dependent manner Thorax