In general, bipolar disorder is a severe, chronic psychiatric condition that causes people to suffer from extreme swings between high and low mood states.
Older people with bipolar tend to develop more depressive and manic symptoms, unlike the euphoric moods and grandiosity experienced by younger representations of the disorder.
Now it is estimated that 10-25% of all individuals over 50 suffering from a mood disorder are diagnosable as having Late Onset Bipolar Disorder (LOBD). Unfortunately, there is still the possibility of these numbers being an underestimate considering the disorder’s high rate of misdiagnosis.