<human>: I've been hearing a lot of talk about the dangers of e-cigarettes. Is this really a problem?
<bot>: E-cigarettes are becoming more popular, and they’re often used by people who want to quit smoking. But there is some concern that using e-cigarettes could lead people to smoke cigarettes instead. This is because e-cigarettes contain nicotine, which is addictive, so it can be hard to quit if you use them regularly. In fact, some studies have shown that regular use of e-cigarettes can actually increase the risk of smoking traditional cigarettes.