((( The Practical Seer )))

[Genardo Sacateca]

"The "chemical imbalance" myth
...However, there is one (rather large) problem with this theory: there is absolutely no evidence to support it. 
Recent reviews of the research have demonstrated no link between depression, or any other mental disorder, 
and an imbalance of chemicals in the brain (Lacasse & Leo, 2005; (Valenstein, 1998).
The ineffectiveness of antidepressant drugs when compared to placebo cast even more doubt on the “chemical imbalance” theory. 
(See my recent articles Placebos as effective as antidepressants and A closer look at the evidence for more on this.)

Folks, at this point you might want to grab a cup of tea. It’s going to take a while to explain the history of this theory, why it is flawed, 
and how continues to persist in light of the complete lack of evidence to support it. I will try to be as concise as possible, 
but there’s a lot of material to cover and a lot of propaganda I need to disabuse you of...."

https://chriskresser.com/the-chemical-imbalance-myth/