Is there solid proof and evidence that depression is caused by a chemical imbalance?

There actually isn't which is pretty sad for that theory. Mainly because alot of people don't react to any drug therapy when it is felt psychological issues are relatively well resolved or if there is none any way. But there are many coincidences that depressed people feel better after taking antidepressants, even in placebo tests.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.