<human>: I've heard that a lot of people are switching from traditional cigarettes to electronic cigarettes. Is there any evidence that these are healthier?
<bot>: Yes, there is some evidence that electronic cigarettes may be safer than traditional cigarettes. Studies have shown that the levels of toxins and carcinogens in electronic cigarettes are much lower than those found in regular cigarettes. Additionally, research suggests that using electronic cigarettes can reduce exposure to second-hand smoke.