Although questions remain concerning the cause(s) of depression, we do know that 2022

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Overview


Depression is a common illness worldwide, with an estimated 3.8% of the population affected, including 5.0% among adults and 5.7% among adults older than 60 years (1). Approximately 280 million people in the world have depression (1). Depression is different from usual mood fluctuations and short-lived emotional responses to challenges in everyday life. Especially when recurrent and with moderate or severe intensity, depression may become a serious

health condition. It can cause the affected person to suffer greatly and function poorly at work, at school and in the family. At its worst, depression can lead to suicide. Over 700 000 people die due to suicide every year. Suicide is the fourth leading cause of death in 15-29-year-olds.




  • Symptoms and patterns

  • Diagnosis and treatment

  • WHO response

  • Which psychological perspective focuses on the idea that explaining our own failures in terms that are global stable and internal contributes to depression?

  • Which of the following factors has been linked to the development of schizophrenia?

  • Is characterized by moods that alternate between the hopelessness and lethargy?

  • Which statement is true concerning the acquisition and maintenance of phobias?


Although there are known, effective treatments for mental disorders, more than 75% of people in low- and middle-income countries receive no treatment (2).  Barriers to effective care

include a lack of resources, lack of trained health-care providers and social stigma associated with mental disorders. In countries of all income levels, people who experience depression are often not correctly diagnosed, and others who do not have the disorder are too often misdiagnosed and prescribed antidepressants.


Symptoms and patterns


During a depressive episode, the person experiences

depressed mood (feeling sad, irritable, empty) or a loss of pleasure or interest in activities, for most of the day, nearly every day, for at least two weeks. Several other symptoms are also present, which may include poor concentration, feelings of excessive guilt or low self-worth, hopelessness about the future, thoughts about dying or suicide, disrupted sleep, changes in appetite or weight, and feeling especially tired or low in energy. 


In some cultural contexts, some

people may express their mood changes more readily in the form of bodily symptoms (e.g. pain, fatigue, weakness).  Yet, these physical symptoms are not due to another medical condition. 




During a depressive episode, the person experiences significant difficulty in personal, family, social, educational, occupational, and/or other important areas of functioning. 


A depressive episode can be categorised as mild, moderate, or severe depending on the

number and severity of symptoms, as well as the impact on the individual’s functioning. 


There are different patterns of mood disorders including:


  • single episode depressive disorder, meaning the person’s first and only episode);

  • recurrent depressive disorder, meaning the person has a history of at least two depressive episodes; and

  • bipolar disorder, meaning that depressive episodes alternate with periods of manic

    symptoms, which include euphoria or irritability, increased activity or energy, and other symptoms such as increased talkativeness, racing thoughts, increased self-esteem, decreased need for sleep, distractibility, and impulsive reckless behaviour.  

Contributing factors and prevention


Depression results from a complex interaction of social, psychological, and biological factors. People who have gone through adverse life

events (unemployment, bereavement, traumatic events) are more likely to develop depression. Depression can, in turn, lead to more stress and dysfunction and worsen the affected person’s life situation and the depression itself.


There are interrelationships between depression and physical health. For example, cardiovascular disease can lead to depression and vice versa.


Prevention programmes have been shown to reduce depression. Effective community approaches to

prevent depression include school-based programmes to enhance a pattern of positive coping in children and adolescents. Interventions for parents of children with behavioural problems may reduce parental depressive symptoms and improve outcomes for their children. Exercise programmes for older persons can also be effective in depression prevention.




Diagnosis and treatment


There are effective treatments for depression. 


Depending on the severity and pattern

of depressive episodes over time, health-care providers may offer psychological treatments such as behavioural activation, cognitive behavioural therapy and interpersonal psychotherapy, and/or antidepressant medication such as selective serotonin reuptake inhibitors (SSRIs) and tricyclic antidepressants (TCAs). Different medications are used for bipolar disorder. Health-care providers should keep in mind the possible adverse effects associated with antidepressant medication, the ability to

deliver either intervention (in terms of expertise, and/or treatment availability), and individual preferences. Different psychological treatment formats for consideration include individual and/or group face-to-face psychological treatments delivered by professionals and supervised lay therapists. Antidepressants are not the first line of treatment for mild depression. They should not be used for treating depression in children and are not the first line of treatment in adolescents, among whom

they should be used with extra caution.


WHO response


WHO’s Mental Health kích hoạt Plan 2013-2030 highlights the steps required to provide appropriate interventions for people with mental disorders including depression. 


Depression is one of the priority conditions covered by WHO’s Mental Health Gap kích hoạt Programme

(mhGAP). The Programme aims to help countries increase services for people with mental, neurological and substance use disorders through care provided by health workers who are not specialists in mental health. 


WHO has developed brief psychological intervention manuals for depression that may be delivered by lay workers to individuals and groups. An example is the Problem

Management Plus manual, which describes the use of behavioural activation, stress management, problem solving treatment and strengthening social tư vấn. Moreover, the Group Interpersonal Therapy for Depression manual describes group treatment of depression. Finally, the Thinking Healthy manual covers the use of

cognitive-behavioural therapy for perinatal depression.


References


  1. Institute of Health Metrics and Evaluation. Global Health Data Exchange (GHDx).  http://ghdx.healthdata.org/gbd-results-tool?params=gbd-api-2019-permalink/d780dffbe8a381b25e1416884959e88b (Accessed 1 May 2021).

  2. Evans-Lacko S,

    Aguilar-Gaxiola S, Al-Hamzawi A, et al. Socio-economic variations in the mental health treatment gap for people with anxiety, mood, and substance use disorders: results from the WHO World Mental Health (WMH) surveys. Psychol Med. 2018;48(9):1560-1571. 



Which psychological perspective focuses on the idea that explaining our own failures in terms that are global stable and internal contributes to depression?


Attributional Styles

A chronic style of attributing failures to internal, stable, and global causes, sometimes labeled as the ‘depressive attributional style’ is characteristic of depression-prone people (Seligman, 2002).

Which of the following factors has been linked to the development of schizophrenia?


Research suggests a combination of physical, genetic, psychological and environmental factors can make a person more likely to develop the condition. Some people may be prone to schizophrenia, and a stressful or emotional life sự kiện might trigger a psychotic episode.

Is characterized by moods that alternate between the hopelessness and lethargy?


Bipolar Disorder-a mood disorder in which the person alternates between the hopelessness and lethargy of depression and the overexcited state of mania.

Which statement is true concerning the acquisition and maintenance of phobias?


Which statement is true concerning the acquisition and maintenance of phobias? Phobias are acquired through classical conditioning and maintained through operant conditioning.

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