does tobacco release dopamine What is the mechanism by which nicotine produces its biological and behavioral effects? How does nicotine work

National Center for Chronic Disease Prevention and Health Promotion (US)

When someone stops smoking, their risk of developing smoking-related health problems and diseases will not disappear overnight, but it will decrease with time

Factors Influencing Drug Clearance from Saliva The rate at which drugs leave saliva depends on several factors, including: Frequency and amount of use: chronic users retain detectable levels longer Metabolism: faster metabolic rates lead to quicker clearance Saliva flow rate: higher flow (e.g., drinking water, chewing gum) dilutes drug levels Oral hygiene: brushing teeth and mouth rinsing can reduce surface residue Saliva pH and enzyme activity: Acidic saliva tends to retain more basic drugs (like amphetamines), trapping them longer

As a result, the school has faced problems with student behavior and attendance