Drugs that reduce neural activity and slow body functions are known as what?

• A. Stimulants
• B. Hallucinogens
• C. Opiates
• D. Depressants

Answer: (D)

Depressants are drugs that slow down the central nervous system, reducing neural activity and slowing body functions like heart rate, breathing, and reflexes. They dampen brain activity, often by enhancing inhibitory signals (for example, increasing GABA activity), which leads to drowsiness, slowed thinking, and impaired coordination. Examples include alcohol and opiates, as well as certain sedatives. This is in contrast to stimulants, which boost neural activity and alertness, and hallucinogens, which alter perception. The defining feature here is the overall suppression of brain and bodily functions.