SWSD disturbs the sleep-wake cycle, making workers sleepy and unable to sleep on time. Effective SWSD treatment often includes Modalert 200 (modafinil). Modalert 200 helps shift workers remain alert and focused by activating the central nervous system, providing alertness, and minimizing weariness. Waklert, an armodafinil-based drug, may last longer. Melatonin pills may help normal... https://www.smartfinil.net/product/modalert-200/