Depression Explained

No one knows exactly what causes depression. Genetic factors are important in many cases of depression, where depression seems to run in families (as do other mood disorders), and about 30% of the vulnerability for depression is due to  genetic influences.  
‍
Stressful life events  also play a part in depression. Ongoing conflicts with others can take their toll on our wellbeing, as can other social and environmental stressors such as financial difficulties, retirement, unemployment, childbirth, loneliness, or loss of someone or something important. In vulnerable people, these stressful life events may be enough to cause or worsen depression.

Personality style is another important factor. When people are depressed, they usually have a very negative view of themselves and the world. They do not appreciate good things, and bad things seem overwhelming. Some people have a tendency to view themselves and the world this way even when they are not depressed. In other words, they may have a depressive personality style.

Other possible causes of depression that should not be overlooked is  physical illness or medications. Glandular fever, influenza, hepatitis, thyroid hormones, anaemia, diabetes, birth control pills, alcohol and substances of abuse, or certain medications such as those for heart or blood pressure conditions, may all cause symptoms of depression.