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Description
Inside an e-cigarette ( vape pen ) there is: a heating element (atomizer/cartomizer) to vaporize a liquid solution usually containing a mixture of: Propylene glycol (a flavor enhancer)

Neither the House or Senate version of the bill has been heard in any committees yet

The authors located several dozen studies made of the effects of these substances on animals and tissues (preclinical studies) and also on humans (clinical studies)

Adverse physiological effects of smoking cessation on the gastrointestinal tract: A review

Anxiety and Restlessness: Many individuals experience heightened levels of anxiety and restlessness during tobacco withdrawal
