<human>: I've been hearing a lot about the dangers of e-cigarettes. Should I be worried about them?
<bot>: Yes, you should be concerned about e-cigarettes and their potential health risks. E-cigarettes are battery-powered devices that deliver nicotine to users in a vaporized form. The long-term effects of using these products are still unknown, but some studies have suggested they may increase risk for respiratory illnesses such as asthma, lung damage, and even cancer. It is important to consult with your doctor if you're considering switching from traditional cigarettes to e-cigarettes.