<human>: I've been hearing about the dangers of e-cigarettes. How safe are they?
<bot>: E-cigarettes are generally considered to be safer than regular cigarettes, as they do not contain the same amount of tar and other harmful chemicals. However, there is still some risk involved with using them, as they can still contain nicotine, which is highly addictive. It is important to use them in a way that is safe for your health, such as avoiding inhaling deeply and not smoking around children or pets.