When Carl first started drinking, all he needed to get a buzz was two beers. Now it takes two six packs. This reduction in Carl's responsiveness to his "drug of choice" is called a
A)drug compulsion.
B)drug tolerance.
C)physical withdrawal.
D)psychological addiction.

Question

Quizplus · Accepted Answer

Drug tolerance occurs when a person needs to consume a larger amount of a substance over time to achieve the same effects that were initially experienced with smaller amounts. In Carl's case, needing more alcohol to achieve a buzz is a classic example of developing tolerance to the substance.

When Carl First Started Drinking, All He Needed to Get