American Association of Family and Consumer Sciences (AAFCS) Practice Test

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What is a drug, according to the World Health Organization?

Any substance that improves physical performance
Any chemical substance that changes the way a person acts or feels
Any medicine approved by the medical profession
Any substance that causes addiction

The correct answer is: Any chemical substance that changes the way a person acts or feels

A drug, as defined by the World Health Organization, refers to any chemical substance that alters an individual's feelings, thoughts, or behaviors. This definition encompasses a wide range of substances, including legal and illegal drugs, recreational and medicinal substances. The emphasis is on the changes in physical or mental states that these substances can induce, which can impact emotional well-being, cognitive processes, and overall behavior. This definition is broader than merely stating a substance that enhances physical performance or one that is approved medicinally, as it includes substances that may not have therapeutic uses. It also differentiates between substances that can lead to addiction and those that do not, as not all drugs are addictive or harmful. Understanding this definition helps professionals in the field recognize the diverse effects and contexts in which various substances are used and misused.