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could account for developmental and neurochemical psychopathology observed after nicotine exposure[74] That is, nicotine may incorrectly mimic or duplicate endogenous signals produced by acetylcholine ACh, which an important part when synaptic formation is normal, by functioning as a nAChR agonist [78]

Nicotine in the wall makes us sick, with cough and sore throat

Without sufficient saliva, the mouth becomes an ideal environment for bacteria to thrive

It's a complex question, and there's no single answer that fits everyone

Smoking more than 20 cigarettes a day has been found to increase the risk of infectious diseases by as much as four times the risk in non-smokers

and mental wellbeing (9 studies