When psychoactive drugs (potentially addictive) such as heroin are used repeatedly over time, tolerance may develop. Tolerance occurs when it takes a higher dose of the drug to achieve the same level of response achieved initially.
Tolerance develops because of the body’s natural desire for homeostasis (stability). Our bodies abhors dramatic highs and lows. To regain some normal functioning despite continuous presence of a drug in the system, some adaptations to counter the drug effects is required through increased drug metabolism and/or decreasing it’s response.
Tolerance to such drugs is dangerous though. It may result in several . . .
Please Subscribe to continue reading
