New research suggests e-cigarettes generate toxic chemicals similar to those found in tobacco and may harm the lungs and immune system. In this new study, mice exposed to e-cigarette fumes suffered mild damage to their lungs and became far more susceptible to respiratory infections.
This study clearly warrents further study in susceptible individuals, such as COPD (chronic obstructive pulmonary disorder) patients who have switched from cigarettes to e-cigarettes, or to new users of e-cigarettes who may have never used cigarettes. Read more on this here.
The use of e-cigarettes is fast becoming a cause of concern; e-cigarette sales in the US are expected to overtake sales of cigarettes in the next ten years and in 2013 more than 250,000 American teenagers who had never smoked a cigarette reported using e-cigarettes. In 2014 the Irish Government approved the drafting of a Bill to restrict e-cigarette sales. This would prohibit the sale of non-medicinal nicotine delivery systems, including e-cigarettes, to those under 18 years of age and by those under 18 years. The World Health Organization has also called for strict regulation of electronic cigarettes and bans on indoor use, advertising and sales to minors.