Some medications and other substances have been shown to enhance mental performance, attentiveness, or attention under specific circumstances. For instance, armodafinil, a medication used to treat disorders including narcolepsy and shift work sleep disorder, is included in Waklert 150 (https://www.smartfinil.net/product/waklert-150/) to encourage alertness. Some users might find it easier to maintain mental alertness and attention for extended periods of time. As a cognitive enhancer for healthy people, it is not, however, formally authorized. Sleep, a healthy diet, physical activity, and mental training are the main sources of strong cognitive function; drugs should only be taken under medical supervision.