Which term describes a substance other than food that, when taken in small quantities, alters one's physical, mental or emotional state?

Which term describes a substance other than food that, when taken in small quantities, alters one's physical, mental or emotional state?

• A. Drug
• B. Psychoactive drugs
• C. Drug use
• D. Inherited risk factors

Answer: (A)

A drug is any chemical substance other than food that, when taken in small quantities, changes how the body or mind functions. This broad term covers legal and illegal substances, medicines, and everyday items like caffeine or nicotine, all of which can affect physical states (like heart rate or energy) and mental states (like mood, alertness, or perception). The statement isn’t limited to substances that only affect thinking; it includes anything that can alter state. A psychoactive drug is a subset focused specifically on altering mental processes, but the general term that fits the description best is simply drug.

A drug is any chemical substance other than food that, when taken in small quantities, changes how the body or mind functions. This broad term covers legal and illegal substances, medicines, and everyday items like caffeine or nicotine, all of which can affect physical states (like heart rate or energy) and mental states (like mood, alertness, or perception). The statement isn’t limited to substances that only affect thinking; it includes anything that can alter state. A psychoactive drug is a subset focused specifically on altering mental processes, but the general term that fits the description best is simply drug.