At times Allen has had little need for sleep and can't stop talking with his mind seeming to race from idea to idea.Everything he does seems to him to be of immense importance,and he often spends too much money and "parties" too much during these times.However,he soon begins to feel extremely sad,worthless,and empty.Allen appears to be suffering from which disorder?

Question

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Allen's symptoms are indicative of bipolar I disorder, which is characterized by episodes of mania (feeling of high energy, impulsivity, and racing thoughts) and major depression. Allen displays symptoms of manic episodes such as decreased need for sleep, excessive talking, and spending sprees. Moreover, he also experiences extreme sadness and worthlessness, which are symptoms of major depressive episodes.

At Times Allen Has Had Little Need for Sleep and Can't