The one thing we do know is that the chemical imbalance...
The one thing we do know is that the chemical imbalance theory - the theory that people get depressed when they don't have enough serotonin in their brain - we know that that's wrong.
![Irving Kirsch Quote About Chemical, People, Theory: The One Thing We Do...](http://qt.azureedge.net/resources/quotes-images-large/the-one-thing-we-do-know-is-that-the-chemical-imbalance-theory-the-theory-that-f4af141d85461bd6f8ff9832d59c03ce.jpg)
The one thing we do know is that the chemical imbalance theory - the theory that people get depressed when they don't have enough serotonin in their brain - we know that that's wrong.