I don't think it's a born only disability. I've seen people go through changes in life that sent them into being bi-polar...True Bi-Polar people need medication. I hate to say it but it is true. Whether that medication is a low dose of something mild or something hard hitting is dependant on the severity and the individual but the main reason they are diagnosed is because they aren't doing well and either self refer or get put in by others and that means self control didn't work.
Sure, traumatic events in people's lives can cause temporary or permanent, erratic behavioral patterns... But IMO, bi-polar disorder has a genetic predisposition and such an uncontrollable and unacceptable mood disorder can NOT be caused by condition or as you say, "people going through changes in life." Changes and growing up can cause people to have emotional ups and downs, sure... but that's life. You can't say, "Jeeze dude, you're actin' all bi-polar!" It's not that simple.
ANDROFACTORY official representative - CEO (non-profit) Believer Castle believer-castle (dot) com Charity Project 'Monsanto Movement' Admin/Web Designer MonsantoMovement (dot) com