E-cigarettes may increase asthma, study finds

Researchers at the University of Vermont and others in the United States had mice inhale various types of e-cigarette smoke twice a day for a period of time, then exposed them to the sensitive air and conducted a controlled study with mice that did not inhale e-cigarettesfound that different aromas do different damage to the respiratory tract, such as black licorice taste increases respiratory inflammation, cinnamon taste increases respiratory sensitivity, and banana pudding can cause more severe tissue scarringThe researchers did not specifically analyze which of the ingredients in the fragrance additives caused the damageHowever, previous studies have confirmed that some cream and cinnamon additives in e-cigarettes are toxic, while mint flavor additives are carcinogenicresearchers suggest that people with respiratory diseases such as asthma should be particularly alert to e-cigarettes, which health authorities also need to regulate, taking into account health riskse-cigarettes look and taste similar to regular cigarettes, mainly by heating and evaporating nicotine solutions to provide smokers with a similar feeling to smoking regular cigarettes, but the safety of e-cigarette additives is also a concernMany manufacturers claim that e-cigarettes are a safe alternative to traditional cigarettes and help stop smoking, but the World Health Organization has issued a report that says there is insufficient evidence to support this conclusion.