The Biology of Depression

<Tab/>Depression is a mood disorder or mental illness in which a person experiences a constant depressed mood and diminished interests or pleasure. Symptoms may also include insomnia, weight loss or gain and indecisiveness or loss of ability to concentrate. Everybody faces a depressed mood but clinical depression is a re-occurring disease including multiple episodes, lasting at least two weeks. Many people believe depression is more of a character flaw more …

…when it interacts with adrenal glucocorticoid. <Tab/>The serotonin 5-HT is classified as a key factor of depression and most important are the serotonin 1a receptor (5-HT1a) and serotonin 2a receptor (5-HT2a). Anti-depressants use these factors to keep up the serotonin in the synapses of neurons. When messages fail to communicate and emotions or lost, the emotion turns to a blank state and lack or arousal pleasure or interest.