http://www.clinicalpsychiatrynews.com/n ... 104f0.html
This matches with what I've seen some other authors on bipolar disorder write; as well, it matches the DSM-5's added requirement for diagnosis of a (hypo)manic episode: abnormally increase energy levels.
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"You have a responsibility to consider all sides of a problem and a responsibility to make a judgment and a responsibility to care for all involved." --Ian Danskin