Chemical Imbalance Theory

Uses

How it works

Evidence quality

Highlighted claims

• The serotonin deficiency theory of depression has never been scientifically proven. — Depression Has Nothing to Do With Your Brain
• The premise that depression stems from a serotonin deficiency is foundationally wrong. — Depression Has Nothing to Do With Your Brain
• The brain's chemistry is disrupted by transitory elevation, leading to a rebound low. — Depression as Chemical Imbalance: The Effect of Transitory Highs
• No scientific study supports the claim that depression is caused by a chemical imbalance in the brain. — Eleven Causes of Depression: Beyond the Chemical Imbalance Theory
• Chemical imbalance in the brain is the defining feature of depression from a medical perspective. — Depression as Chemical Imbalance: The Effect of Transitory Highs
• Despite the lack of evidence, patients are routinely prescribed medication for a supposed chemical imbalance and often remain on these drugs for 10–20 years. — Eleven Causes of Depression: Beyond the Chemical Imbalance Theory
• Studies show that depressed individuals have normal or even elevated serotonin levels. — Depression Has Nothing to Do With Your Brain
• The key clinical question is not the imbalance itself but what caused it. — Depression as Chemical Imbalance: The Effect of Transitory Highs
• Epigenetics — where environmental factors, diet, and nutrition influence gene expression — is a more accurate framing than genetic determinism. — Eleven Causes of Depression: Beyond the Chemical Imbalance Theory
• The claim that depression is genetic has never been proven. — Eleven Causes of Depression: Beyond the Chemical Imbalance Theory