By enhancing concentration, alertness, and attention, Modvigil (modafinil) may indirectly assist memory and learning. According to research, it can improve several forms of memory and learning, particularly in those who are fatigued or have cognitive impairment. Its effects, however, are not always constant in healthy people. Higher doses may even cause cognitive impairment, according to some research, which suggests advantages only in certain situations or dosages.