just so people know, I am in no way a license clinical psychologist, but I do research and am studying for it. The biggest problems I see with drugs, especially SSRI, is it is used as a quick fix me. You will never get better unless you try to deal with the underlying causes/stressors/problems.
Actually, believe it or not, SSRIs treat A LOT of problems, not just depression. so to say depression is mainly a chemical imbalance is in my opinion false, since even "normal" people who take them feel better. Sure, I do think some clinically depressed people definitely may have MORE imbalances - less inhibitors, less receptors for serotonin, less serotonin, etc. but to use drugs as the only treatment, I don't think people are truly getting better, just relieved during the time they are taking the drugs. YESSS, absolutely, research shows far and above drugs alone is better than say talk therapy or cognitive-behavioral therapy alone, but the MOST effective is doing all three, which unfortunately is quite costly and many insurance don't cover them all...