There are three common ages of onset, juvenille, early twenties and in elderly patients. The disease in elderly patients behaves differently and has different causes. Also the disease is often missed or misdiagnoses for on average 7 years!

the common belief is that it does not get better and requires lifelong treatment. THere has been little investigation into high functioning BPs who may of "recovered" and been lost to follow up.

who knows what future research will discover with regards to treatment and recovery