I was reading an article
and thought i would share my feelings on the topic with you
I think as with most things in life its unlikely that the massive increase in bi polar diagnosis/incidence is down to any one reason, but more a combination of contributing factors...
its possible misdiagnosis accounts for a huge part in this.
Simple time constraints on over worked Dr that just does not give them the time required for an in depth exploration of the nuances in their patients behavior/conditions.
Sloppy/lazy diagnosis with bipolar merely being the quick easy option...
And of course with the symptoms of bipolar being so widely know now there is that fraction of society that will lie or exaggerate their "symptoms" merely to procure an excuse for miss behavior
or in the case of children parents who will do like wise simply so they have an out... a reason to say their child's behavior is not because they as a parent failed
Another thing to take into consideration is the "seek and you will find" factor... you see what your looking for
Life styles/society/the environment even diet is ever changing it is highly plausible that this or an aspect of this may also explain an increase
The illicit drugs factor is difficult as there is always that chicken or the egg factor... is the incidence of higher use merely an attempt at self medication?