(Beatboxing) (Laughter) (Applause) But as far as being a performer, I'm also diagnosed bipolar.

Childhood bipolar -- children as young as four are being labeled bipolar because they have temper tantrums, which scores them high on the bipolar checklist.

Several groups are studying conditions like depression, schizophrenia and bipolar and what's going on in terms of sleep disruption.

Also, psychotic symptoms, like disorganized speech and behavior, delusional thoughts, paranoia, and hallucinations can emerge during extreme phases of bipolar disorder.