does tobacco keep rats away is injurious to health – know it for sure This fucker : r/RATS
Description
Nicotine excites the brains reward circuitry, making cigarettes moreish, but as your brain re-tunes itself to having its chemistry altered over the long-term, the effect of going too long without putting nicotine in your brain becomes increasingly punishing

J Environ Pathol Toxicol Oncology: Official Organ Int Soc Environ Toxicol Cancer

Here's a look at the new laws in D.C
Adolescent exposure to nicotine impairs adult serial pattern learning in rats