Amphetamines are a class of stimulant drugs that affect the central nervous system. They increase the levels of certain chemicals in the brain, leading to heightened alertness, energy, and concentration. Commonly prescribed for conditions like Attention Deficit Hyperactivity Disorder (ADHD) and narcolepsy, they can help improve focus and reduce impulsivity in individuals with these disorders. While amphetamines can be beneficial when used as directed, they also carry a risk of misuse and addiction. Some people may take them recreationally for their euphoric effects, which can lead to serious health issues. It's important to use these medications under the guidance of a healthcare professional.