What is one example of a depressant?

The correct answer is alcohol, which is classified as a depressant due to its effects on the central nervous system. Depressants slow down brain activity, leading to a decrease in heart rate, relaxation of muscles, and an overall calming effect. When consumed, alcohol can impair judgment, motor coordination, and reaction time, which are common effects associated with depressant substances.

In contrast, caffeine and nicotine are stimulants. They increase alertness, energy, and heart rate, providing an opposite effect to that of depressants. LSD is classified as a hallucinogen, which alters perception, mood, and various cognitive processes rather than inducing depressant effects. Understanding these categories is essential, as it helps to clarify the specific effects substances have on the body and mind.