<unk> , known today as<unk>  disorder, tends to be underdiagnosed due to its low intensity. The exact rates for<unk>  have not been widely studied. Some studies estimate that between 5 and 8% are affected at some point in their life whereas other studies suggest a rate ranging from 0.4 to 2.5%. Males appear to be affected equally often, though women are more likely to receive treatment.<unk>  is diagnosed in around fifty percent of people with depression who are evaluated in psychiatric outpatient settings.
Cyclothymia
Substance use disorder
Dysthymia
Borderline personality disorder
Euthymia 
Bipolar disorder
Congenital athymia
Myokymia