Medical Research has contributed alot to our knowledge about depression, however scientists do not know what is the exact cause of a depressive illness. Most probably there is no factor that gives this illness, but doctors are trying to put this puzzle together. Doctors believed that the causes of depression were thoughts or emotions troubling a person, but research has concluded that three main factors that cause depression are: biological, genetic, and environmental.
People suffering from depression have an imbalance of neurotransmitters, which are natural substances that allow brain cells to communicate with one another. Two transmitters implicated in depression are serotonin and norepinephrine. Other chemicals may be altered in depressed people, such as cortisol, which is a hormone that the body produces in response to stress, anger, or fear. Cortisol never lowers in depressed people, therefore they always feel these emotions.http://www.healthyplace.com/depression/main/causes-of-depression/menu-id-943/
People suffering from depression have an imbalance of neurotransmitters, which are natural substances that allow brain cells to communicate with one another. Two transmitters implicated in depression are serotonin and norepinephrine. Other chemicals may be altered in depressed people, such as cortisol, which is a hormone that the body produces in response to stress, anger, or fear. Cortisol never lowers in depressed people, therefore they always feel these emotions.http://www.healthyplace.com/depression/main/causes-of-depression/menu-id-943/
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