A previous study showed a correlation between e-cigarette use and increased symptomatic dry eye and decreased tear film, theorizing that the propylene glycol used as solvent for the e-cigarette liquid produces free radicals which damage the lipid layer of the tear film by lipid peroxidation. In this study, e-cigarette users were found to have lower tear meniscus heights and tear breakup times, which were thought to be from deterioration of the lipid layer, but normal to elevated Schirmer testing indicated increased reflex tearing, the authors noted
Dust mites These tiny insects live in mattresses, pillows, upholstered furniture anywhere they can find moisture along with their favorite food, tiny bits of shed human skin
In fact, the manufacturer only used non-menthol HeatSticks to test intentions to try and use IQOS in a study of young adults despite the fact that menthol cigarettes have been shown to be a starter product for young people, and that menthol makes cigarettes easier to smoke and harder to quit
However, youre not as likely to as you once were
