Nicotine effects research focuses on studying the physiological and psychological effects of nicotine on the human body. This includes understanding the addictive properties of nicotine, its impact on the brain, and the potential health consequences of nicotine consumption. Researchers investigate how nicotine influences neurotransmitter levels, cognitive function, heart rate, and other bodily functions. This research area is important for developing strategies to reduce tobacco use and improve public health outcomes related to nicotine addiction.