what's smokeless tobacco Tobacco: MedlinePlus Smokeless Tobacco and Health Risks
Description
F1000Res, 2019

Smoking may be an effort to calm themselves down, reduce anxiety, make themselves feel relaxed, give themselves a break, or to self-medicate

Furthermore, there has been research to suggest that nicotine exposure primes the brain to become addicted to other substances

Stimulating Memory and Alertness: Nicotine enhances memory and alertness
