stimulants and depressants

Stimulants: These are substances that increase activity in the central nervous system, leading to heightened alertness, energy, and euphoria. Examples include caffeine, cocaine, and methamphetamine. They can increase heart rate, blood pressure, and respiration. Depressants: These substances slow down brain activity, leading to relaxation, drowsiness, or sedation. Examples include alcohol, benzodiazepines, and barbiturates. They can … Read more