Due to the complexity of depression, an exact cause has yet to be determined. Researchers have narrowed down possibilities to conclude that depression may be caused by chemical imbalance genetic factors, psychological predisposition, physical factors, and environmental stresses.
Depression often runs in families. This has led researchers to believe there may be a genetic link. Sometimes, depression can occur in generation after generation of a particular family. At other times, however, there appears to be no genetic link. Researchers conclude that while you are more likely to develop depression if another family member has the disorder, signs of depression may appear in instances where it has not presented in any other family member.
Scientists believe that there may be a link between depression and a certain psychological predisposition for negativity. People who have low self-esteem, a negative attitude, and an overall pessimistic view of life may be more likely to exhibit signs of depression. Depression is also more likely to occur in people who are easily overwhelmed by stress.
Physicians have noticed a correlation between physical illness and depression. Those that suffer from a heart attack or stroke, Parkinson’s disease, and other hormonal disorders seem to be more likely to exhibit signs of depression. The recovery from a physical illness is often set back by depression, and often the depression remains even after the physical ailment is resolved.
While researchers do not see a direct link between negative things happening in one’s life and depression, certain environmental stresses may trigger the disorder. The death of a loved one, getting a divorce, or losing a job can elicit depression. Positive stresses such as moving, being promoted, and having a baby can also potentially cause depression. As mentioned earlier, the way in which a person deals with stress may greatly affect his or her chances for developing depression.
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