Which type of drugs slow the brain's processing ability?

Depressants are a category of drugs that lower brain activity, which in turn slows down the processing ability of the brain. These substances, such as alcohol or benzodiazepines, affect the central nervous system by enhancing the effect of a neurotransmitter called gamma-aminobutyric acid (GABA). This enhancement leads to a tranquilizing effect, resulting in decreased alertness, slower reaction times, and impaired judgment. Understanding the impact of depressants is crucial for recognizing the risks associated with their use, particularly in situations such as driving where quick cognitive and motor responses are essential.