Thirty-year-old jeremy has extreme, recurring mood swings in which he experience severe bouts of depression and then becomes extremely agitated and euphoric for no apparent reason. jeremy is suffering from

The fact that Jeremy has recurring moods swings which cause him to swing from being depressed to feeling euphoric indicates he has bipolar disorder. According to the National Institute of Mental Health, approximately 2.6 percent of adults in the United States suffer from bipolar disorder.