The main manifestation of a depressed patient is a persistent depressed state of mind, which usually does not cause a person to become smarter and does not make the mind feel more responsive. On the contrary, some depressed patients may have the symptom of mental retardation, feeling that their mind becomes slower and slower, as if it is rusting, which is more typical of mental retardation. Therefore, instead of feeling smarter, depressed patients usually feel dumber and slower in their minds. If it is a feeling that one’s mind is becoming more responsive, smarter, turning fast, and thinking a lot, it is possible that it is a manic episode caused by a mood disorder. If you were previously depressed, there is a risk of turning to mania during the application of antidepressants. Therefore, if the symptom of the mental reaction becoming smarter appears, you must pay enough attention to it and follow up with the hospital in time to see if there is a risk of turning into mania.