An article in BPD reports that people with borderline personality disorder are likely to be diagnosed with co-occurring ADHD or bipolar disorder. A recent study found that much of the overlap can be accounted for by a mild form of bipolar disorder called cyclothymia. Findings suggest that an underlying and unifying factor in borderline personality disorder, bipolar disorder, and ADHD may be minor but dysfunctional mood swings. To read this article in its entirety, click here.