Psychoactive Drugs:These are substances that affect the central nervous system and alter brain activity, leading to changes in perception, mood, cognition, and behavior.
Stimulants:These drugs increase neural activity and arouse the central nervous system. They often enhance alertness, attention, energy levels, and can elevate mood.
Depressants:These drugs decrease neural activity and slow down the central nervous system. They often induce relaxation, sedation, reduce anxiety or pain perception.