Question

Which one depresses brain activity?

• A. Sedatives and tranquilizers
• B. Opiate narcotics
• C. Both A and B
• D. Hallucinogens

Answer 1

The correct option is C Both A and B

Sedatives are CNS (Central nervous system) depressants and reduce pain and excitement. Tranquilizers also act on CNS and have a calming effect and reduce anxiety. Opiates are considered as the king of narcotics. They bind to specific receptors in brain and affect many functions of body like slowing down respiration, decreased glandular secretions, nausea and vomiting etc.

Hallucinogens change mood, behaviour, thoughts and produce a dream like state. They don't act on brain.

So, the correct answer is 'Both A and B'.