For people with narcolepsy or shift work sleep disorder, modalert 200 (modafinil) boosts wakefulness and cognitive performance, including working memory. It's not supposed to improve healthy people's memory. It may increase cognitive performance in some studies, although outcomes vary. Modalert 200 can cause headaches, insomnia, and anxiety, therefore use it under medical supervision. Consider cognitive training, a balanced diet, and regular exercise to improve working memory. To avoid dangers and interactions, see a doctor before using Modalert 200.