<human>:  Why do they use nicotine in the Electronic Cigarette industry?
<bot>: Nicotine is a drug that is addictive. It is also a stimulant, so it can make you feel more alert. It is also a relaxant, so it can help you feel calmer and less stressed. Nicotine is used in e-cigarettes because it is a way to deliver nicotine to your body without smoking.