"The main areas of serotonin research provide no consistent evidence of there being an association between serotonin and depression, and no support for the hypo

"The main areas of serotonin research provide no consistent evidence of there being an association between serotonin and depression, and no support for the hypothesis that depression is caused by lowered serotonin activity or concentrations." I wouldn't call it a theory especially if you're being semantic about serotonin reuptuke. Perhaps it's you who is using words you don't understand?