Stimulants are a class of substances that speed up activity in the central nervous system, primarily by increasing levels of certain neurotransmitters such as dopamine and norepinephrine. These effects can result in heightened alertness, improved focus, and elevated energy. However, when misused, stimulants can also lead to serious mental and physical health issues, including paranoia, aggression, heart problems, seizures, and in extreme cases, overdose.
Stimulants come in several forms, including tablets, capsules, powders, and injectable liquids. They can be taken by mouth, inhaled, injected, or smoked. While many are prescribed to treat specific medical conditions like ADHD or narcolepsy, stimulants are often used recreationally for their energizing and euphoric effects, or to suppress appetite, enhance performance, or extend wakefulness.