The Depression sometimes runs in families and may be due to heredity, learned behavior or both. Even with a genetic predisposition, it is usually a stressful or unhappy life event that triggers the onset of a depressive episode. While the exact causes of depression are unknown, several factors appear to affect its onset!
the causes of depression are very many possibilities. at first he may have too many thoughts that he cannot express and finally depression, chances are they both have imagined the problem but have not run the problem and finally depression