Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest and can lead to a variety of emotional and physical problems. Symptoms of depression are Feelings of sadness, emptiness, angry outbursts, Sleep disturbances, Changes in appetite, Anxiety, Trouble thinking, making decisions etc.
The study, sponsored by the World Health Organization, found that 17,9 percent in the Netherlands reported having an extended period of depression within their lifetime. The report also found that women were twice as likely to experience depression, and the strongest link to depression was separation or divorce from a partner.
To diagnosis Depression various tests like Physical test, Lab tests, Psychological test, Diagnostic and Statistical Manual of Mental Disorders (DSM-5) can be conducted. Medications and psychological counseling (psychotherapy) are very effective for most people with depression. Selective serotonin reuptake inhibitors (SSRIs), Serotonin-norepinephrine reuptake inhibitors (SNRIs), Norepinephrine-dopamine reuptake inhibitors (NDRIs), Atypical antidepressants etc. antidepressant drugs can be used.
The main aim of The Netherlands Study of Depression and Anxiety (NESDA) is to determine the factors that influence the development and the long-term prognosis of anxiety and depression.