I doubt the theories on bipolar illness are true. For one, which chemical imbalance are we talking about? Another, is it a chemical imbalance that we are talking about? And, define mood swing, high, or low? These are all subjective and variable. We can label and group people by behaviors and symptoms. But, are we really identifying "what" the problem is? No! Psychiatry cannot identify the cause of bipolar illness. That's why there is no cure for bipolar disorder. Bipolar medications are to sedate (aka stabilitze). My point is, take all bipolar theories with a grain of salt (dose of lithium). We are all individuals. Psychiatry is limited in the ability to predict of how individuals with bipolar disorder will act in the future, if on a particular med or on no meds. Without prediction, is it a "science?"