Cyclothymia differs from bipolar in that major depression, mania, or hypomania have never occurred. Cyclothymia, known today as cyclothymic disorder, tends to be underdiagnosed due to its low intensity. Cyclothymia is classified in DSM-5 as a subtype of bipolar disorder. Soraia has been diagnosed with bipolar disorder, specifically stating that she suffers from cyclothymia. Lastly, the tendency of cyclothymia to be comorbid with other mental disorders makes diagnosis difficult. His first diagnosis was cyclothymia, which he refers to as "bipolar lite". In adults, cyclothymia also tends to be comorbid with impulse control issues. In addition to sensation-related disorders, cyclothymia has also been associated with atypical depression. Landis has stated that he has cyclothymia and dysgraphia. There is also an argument that cyclothymia should be considered a neurodevelopmental disorder. Singer Charlene Soraia had cyclothymia and wrote a song about her experiences with the disorder. Between 20-50 percent of people with depression, anxiety, and related disorders also have cyclothymia. Suicidal thoughts are common, even in mild forms of cyclothymia. Cognitive behavioral therapy (CBT) is considered potentially effective for people diagnosed with cyclothymia. Cyclothymia commonly occurs in conjunction with other disorders.