Although the inhalation risks remain unknown, EC manufacturers are increasing the use and concentrations of synthetic coolants, which are attractive to young users
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This reaction can cause swelling and vascular impairment, with symptoms such as: cold hands, feet, or both pale, blue, or red fingers and toes finger and toe sores burning or tingling hand or foot pain leg, ankle, or foot aches (commonly in the arch of the foot) On average, it takes Some websites claim various home remedies, such as toothpaste, lemon juice, and apple cider vinegar, can remove smoking fingertips
From these data, we derived a new variable with four categories: exclusive e-cigarette users ( n = 281), exclusive cigarette smokers ( n = 1066), dual users ( n = 188), and a combined others category ( n = 6669), which included ex-smokers, never smokers, never e-cigarette users, ex-e-cigarette users, and non-respondents