Where will the energy come from when a person that suffers from bipolar disorder is having a manic episode?

Manic: One theory is excess flow of Dopamine & norepinephrine in brain.

Loss of Inhibition: When people have a manic episode they seem to shut down the inhibitory parts of the brain (the parts that recognize risk, that monitor for poor decisions) in the brain this switch from reflection to action without concern for the consequences results in an increase in activity, although the activity is often misdirected.

Not known: The energy is not energy, rather racing thoughts and lack of inhibition. Lots of questions as to why, but no real answers.