40 years, can't imagine the amount of life adjustments you have to make just to attain normalcy. It's usually sleep, the first symptom to appear and heralds more mental problems as it stays. As much as possible, we try to treat the cause rather than rely on the meds, there are times when patients tend to be dependent with the meds but can't solve the root of their problem which is constant exposure to stressful situations. Well not many have the financial capacity to "change" their environment like work place so sometimes treatment can be long term.