<human>:  What are the symptoms of bipolar disorder?
<bot>: The prominent symptoms of bipolar disorder include drastic changes in mood, energy levels, concentration, activity levels, sleep patterns, and behavior. These changes may include feelings of being on top of the world (mania), to feelings of sadness and hopelessness (depression). Other symptoms of bipolar disorder may include extreme impulsiveness, recklessness, irritability, increased talkativeness, racing thoughts, and paranoia.