An e-cigarette is an electronic device that delivers nicotine to the user in a carrier aerosol system. E-cigarette liquid contains nicotine, propylene glycol, glycerine, flavorings and other chemicals. Since nicotine, which causes addiction to cigarettes, is also found in e-cigarettes, there is a risk of addiction. E-cigarettes can contain heavy metals such as lead, flavorings that cause lung disease, tiny particles that can be inhaled deep into the lungs, and cancer-causing chemicals. Although there are still unknown points about the harms of e-cigarettes, the evidence is clear that there are harmful effects of using e-cigarettes.
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