Nicotine mimics acetylcholine in the brain, many people need it to think clearly. That's why for some people they can never quit while some people can never start. Its been used forever for spiritual purposes and to enhance creativity. The deep state wants people really dumb and also they want tobacco to be the catch all scapegoat for all the cancers they create in people - that's why they put so many toxic additives into cigarettes and then blame tobacco for it