TL;DR Benefits Stimulant Effects: Nicotine is known for its stimulating properties. Research has shown improvements in mental performance, attention, and reaction time. Nootropic Effects: Studies indicate that nicotine might enhance cognitive functions like memory, attention, and learning in certain individuals. Mood Regulation: Some evidence suggests nicotine may have mood-stabilizing effects, potentially beneficial in conditions like depression. Neuroprotective Effects: There's some suggestion that nicotine could protect against neurodegenerative diseases like Parkinson's and Alzheimer's, though this is still speculative. Lack of Demerits Addiction Potential: While nicotine is addictive, its level of addictiveness, especially when separated from tobacco, might be overestimated. It seems less likely to lead to severe addiction compared to substances in tobacco smoke. Health Risks: When isolated from tobacco, the health risks of nicotine appear minimal, especially compared to the risks associated with tobacco smoking. Cost: Nicotine, especially in forms like gum or patches, is relatively affordable and not a significant financial burden for most users. Conclusions Comparative Safety: Nicotine on its own, particularly in forms like gums or patches, is less harmful than tobacco smoking. The primary risks of smoking are attributed to tobacco smoke, not nicotine. Gateway Hypothesis: There's little evidence to suggest that the use of nicotine leads to tobacco use, especially in forms like gum and patches. Personal Use: For non-smokers or those not predisposed to tobacco addiction, the use of nicotine in controlled forms (like gum or patches) might offer cognitive and stimulant benefits with a low risk of severe health issues or addiction.