Depending on the TNP(s) poly-user participants declared using in the last 7 days at the time of the survey, they were administered additional product-specific dependence measures for assessment of convergent validity: FTCD for cigarette and cigar users 12 , smokeless tobacco FTCD (SLT-FTCD) for users of smokeless tobacco products 16 , the Penn State e-cigarette dependence index (PS-ECDI) for e-cigarette users 18 , the Lebanon Waterpipe Dependence Scale (LWDS) for waterpipe users 19
However, some people are more sensitive to the effects of caffeine than others, and for them, even a small amount of caffeine can cause diarrhea
We dont yet know about all the chemicals that users are exposed to when vaping
An especially severe infection could also cause high fever or swollen lymph nodes, and in young adults a first oral HSV-1 infection might be misdiagnosed as tonsillitis, possibly leading to unnecessary tonsillectomies
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