What term describes a person who habitually misuses a substance and requires increasing amounts to achieve the same effect?

What term describes a person who habitually misuses a substance and requires increasing amounts to achieve the same effect?

• A. Dependence
• B. Tolerance
• C. Withdrawal
• D. Intoxication

Answer: (B)

Tolerance is the body's adaptation to repeated drug exposure, leading to a diminished response. Because of this, the person must take larger amounts of the substance to achieve the same effect. This matches the scenario where someone habitually misuses a substance and requires increasing doses to reach the same level of effect. It’s different from withdrawal (symptoms when stopping), intoxication (the current impairment while under the drug’s influence), and dependence (a need for the drug that can include withdrawal, but the hallmark here is escalating dose to regain the same effect).

Tolerance is the body's adaptation to repeated drug exposure, leading to a diminished response. Because of this, the person must take larger amounts of the substance to achieve the same effect. This matches the scenario where someone habitually misuses a substance and requires increasing doses to reach the same level of effect. It’s different from withdrawal (symptoms when stopping), intoxication (the current impairment while under the drug’s influence), and dependence (a need for the drug that can include withdrawal, but the hallmark here is escalating dose to regain the same effect).