The main symptom of SWSD is difficulty falling and staying asleep at night and feeling tired during the day, even after getting a good night’s sleep. The severity of the symptoms varies by person, but they must have lasted for more than one month. They must also not be better explained by another medical or neurological disorder, Modafinil 200 mg medication, mental illness, substance use disorders, or poor sleep habits.
These findings, however, do not explain the lack of a strong, consistent, or sustained effect of Modvigil on addictive behavior. One explanation is that the high dose used in the present study might have produced a modest effect. Another possible explanation is that the higher dose did not have an effect on place preference. Although the results of this study were promising, they suggest that Modalert 200 buy online has little to offer the user other than a milder, but non-reinforcing, effect. Moreover, more research is needed to better understand the potential for addiction and to identify ways to minimize the risk of relapse.