One Road Out of Depression
The "chemical imbalance" theory has been losing steam for quite some time.The British Psychological Society has issued this consensus statement: 
There is actually no evidence for the current view – and we agree with many senior psychiatrists in saying that – we do have an overwhelming amount of evidence that even severe psychiatric breakdown is actually the end result of a complex mix of social and psychological circumstances. People who have suffered things like bereavement, loss, discrimination, poverty, trauma, abuse, domestic violence, in other words things that have happened to you.From my experience, and many others, we have a script running in the background of our minds. Nonstop. This script is brutal, telling us we're worthless, unable to do this, will always be alone, etc etc. It gets etched in our mind and we become it, and likely impacts all aspects of our brain chemistry. (Depressed patients are often deficient in many key areas Omega 3, Magnesium, Vitamin B, etc)https://www.scientificamerican.com/article/is-depression-jus...