Modafinil is a prescription medication primarily used to treat sleep disorders such as narcolepsy, obstructive sleep apnea, and shift work sleep disorder. It promotes wakefulness and helps improve focus and cognitive function. Unlike traditional stimulants, it has a lower risk of dependence and fewer side effects. The exact mechanism of action of Modafinil is not fully understood, but it is believed to affect certain neurotransmitters in the brain, including dopamine and norepinephrine. It is often used off-label by individuals seeking to enhance productivity or alertness, particularly in demanding work or study environments.