CNS stimulants include a variety of substances such as caffeine, nicotine, amphetamines, and cocaine. These compounds increase the levels of certain neurotransmitters in the brain, such as dopamine and norepinephrine, leading to heightened alertness, increased energy, and enhanced focus. While some CNS stimulants are used therapeutically, such as in the treatment of attention deficit hyperactivity disorder (ADHD), they can also pose significant health risks when misused.
