Chemical Imbalance

Scientific studies have found that different brain areas show altered activity in humans with major depressive disorder (MDD), and this has encouraged advocates of various theories that seek to identify a biochemical origin of the disease, as opposed to theories that emphasize psychological or situational causes.

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Chemical imbalance in the forebrain discovered in people with obsessive-compulsive disorder

A chemical imbalance doesn’t explain depression. So what does?

The chemical imbalance theory of depression has been debunked a long time ago, not recently, as media reports of meta-analysis

Depression is probably not caused by a chemical imbalance in the brain – new study

Scientists Find No Evidence That Depression Is Caused by “Chemical Imbalance” or Low Serotonin Levels