Activated carbon smoking filters can trap some chemicals in smoke, but they do not remove everything
Regulations include restricting sales of e-cigarettes to customers age 18 and older, reporting detailed ingredient lists, providing tobacco health documentation, posting warning statements on packaging and advertisements that state potential risks, among other rules
But in the former smokers the researchers examined, there were four times as many healthy cells, with up to 40 percent of their lung cells appearing no different than those in someone who has never smoked, BBC News reported
Last year, legislators expanded the tobacco tax to cover e-cigarettes, even though there is no tobacco in e-cigarettes
However, a study released last year in Current Psychiatry Reports said that despite "robust evidence" linking smoking and anxiety, there are "considerable discrepancies for the precise role of anxiety in smoking onset, severity, and cessation outcomes." Lorra Garey, the study's lead author, said alcohol and substance abuse could be clouding the true connection
got one in a "grab bag"