Final answer:
Tolerance is the phenomenon that occurs when a person has to consume more of a drug in order to get the same effect. It is linked to physiological dependence and can lead to increased drug use and potential overdose.
Step-by-step explanation:
Tolerance is the phenomenon that occurs when a person has to consume more of a drug in order to get the same effect. It is linked to physiological dependence and can lead to increased drug use, potentially resulting in dangerous levels of consumption and overdose.
This can be explained by the body's ability to adapt to the presence of a drug. Over time, the body develops a tolerance to the drug, meaning that it becomes less responsive to its effects. As a result, higher doses of the drug are required to achieve the desired effects.
For example, a person who regularly consumes alcohol may develop a tolerance to its effects. Initially, a few drinks may produce feelings of relaxation and euphoria. However, as tolerance builds, more alcohol is needed to achieve the same level of intoxication.