The Importance of Stress in Depression

A web MD wrote that 90% of depression cases are caused by stress. This might be a good time to talk about serotonin's Active like many things activate the adrenal glands, but serotonin is one of the most like powerful activators is that right? It was a really funny animal quote talking about injecting okay serotonin injected intracereberly in minute physiological quantities cause severe neurological alterations. Third of the serotonin injected animals suffered mild neurological deficits and one third died.