HEAD IN THE CLOUDS? 💨 Although the pool of cigarette smokers appears to be shrinking, VAPE smoking seems to be growing in popularity (especially amongst youthful demographics) as its replacement. For many, vaping is proposed to be safe or at least, a safer alternative to smoking tobacco. Sound too good to be true? It probably is. The e-liquid typically contains humectants and flavourings, with or without nicotine; once vaporised by the atomiser, the aerosol (vapour) provides a sensation similar smoking, but purportedly without harmful effects. For this particular reason, vaping is often viewed as a smoking cessation tool, yet this idea seems controversial given nicotine levels vary while some compounds generated from humectants (propylene glycol and glycerol) and flavourings, have been associated with clear airways impact, inflammation, impairment of cardiovascular function and toxicity. In addition, some of them are potential carcinogens. Little seems to be known about the effect...