- Current location:Home page >> health information
What is depression?
2026-04-05 16:33:25
What is depression?
Depression is a common mental health problem characterized by persistent low mood, loss of interest, lack of energy, and even physical symptoms such as insomnia or changes in appetite. It is different from short-term mood swings, but has a long-term impact on an individual's thinking, behavior and quality of life. This article will expand on the definition, symptoms, causes, coping methods and social support of depression to help readers fully understand this psychological state.
Core symptoms and manifestations of depression

Core symptoms of depression include low mood that lasts for more than two weeks, loss of interest in daily activities, and a significant decrease in energy. Patients may feel worthless, blame themselves, or even experience suicidal thoughts. Physiologically, it may be accompanied by sleep disorders (such as insomnia or hypersomnia), significant changes in weight, and difficulty concentrating. According to data from the World Health Organization (WHO), about 3.8% of the world's population suffers from depression, with the prevalence rate among women being higher than among men. It should be noted that depression is not a "weak character" but the result of a combination of factors.
Causes of depression: biological, psychological and social factors
The causes of depression are complex and usually involve biological, psychological and social aspects. Biological factors include genetic predispositions and imbalances in brain chemicals (such as serotonin); psychological factors such as long-term stress, traumatic experiences, or negative cognitive patterns; and social factors including interpersonal tensions and financial difficulties. For example, the "learned helplessness" theory proposed by American psychologist Martin Seligman believes that long-term inability to control negative events may induce depression. In addition, chronic illness or medication side effects may also be triggers.
How to deal with depression? Professional treatment and self-regulation
Dealing with depression requires a combination of professional treatment and self-regulation. Mild depression can be improved through psychological counseling (such as cognitive behavioral therapy) or lifestyle modification (regular exercise, social activities); moderate and severe depression may require pharmaceutical intervention, such as selective serotonin reuptake inhibitors (SSRIs). Well-known antidepressant drugs include Pfizer’s “Sertraline” (trade name Zoloft) and Eli Lilly’s “Fluoxetine” (trade name Prozac). At the same time, the understanding and support of family and friends is crucial. Avoid isolating or blaming the patient and instead encourage them to seek professional help.
Summary: Pay equal attention to understanding and action
Depression is an intervenable mental health problem that needs to be treated scientifically without prejudice. Early recognition of symptoms and prompt medical treatment are key. Society should strengthen mental health education and reduce stigma. If you or someone around you has related symptoms, you can call the psychological assistance hotline or consult a psychiatrist. Remember, depression is not invincible, and with the right approach, most sufferers can significantly improve their quality of life.
| data item | content |
|---|---|
| Global prevalence of depression | About 3.8% (WHO 2021 data) |
| Common antidepressants | Sertraline (Pfizer), Fluoxetine (Eli Lilly) |
Quote sources:
1. World Health Organization (WHO) "Mental Health Report 2021"
2. Martin Seligman’s “Learned Helplessness” Theory
3. American Psychiatric Association (APA) Depression Diagnosis and Treatment Guidelines
Relevant knowledge
- 2026-06-02What is HPV testing?
- 2026-06-02What is TCT examination?
- 2026-06-02What does a cervical smear do?
- 2026-06-01What is a cervical smear?
- 2026-06-01What is bronchoscopy?
- 2026-06-01What is capsule endoscopy?
- 2026-06-01What is painless gastroscopy?
- 2026-06-01What can a colonoscopy detect?
- 2026-05-31What is a colonoscopy?
- 2026-05-31What can a gastroscopy detect?
- 2026-05-30What is gastroscopy?
- 2026-05-30What does a bone density test mean?
- 2026-05-30What is a bone density test?
- 2026-05-30What can carotid artery color ultrasound detect?
- 2026-05-29What is carotid artery ultrasound?
- 2026-05-29What is prostate B-ultrasound?
- 2026-05-29What is gynecological B-ultrasound?
- 2026-05-29What is Breast Ultrasound?
Chinese medicinal materials
More-
View
The efficacy and function of fragrant tea vegetables
Overview of the efficacy and functions of fragrant tea vegetablesChacai is a traditional medicinal plant that has the effects of clearing away heat, detoxifying, reducing swelling and pain, and is antibacterial and anti-inflammatory. It is commonly used among the people to treat colds, sore throat and skin inflammation. Its main active ingredients such as flavonoids and volatile oils give it multiple pharmacological effects, among which the antibacterial and anti-inflammatory effects are the mos
-
View
The efficacy and function of Kudidin
Overview of the efficacy and functions of KudidinKudidin is a traditional Chinese medicinal material that has the functions of clearing away heat and detoxifying, reducing swelling and relieving pain, activating blood circulation and removing blood stasis. It is often used to treat sore throat, sores, bruises and injuries. Its main active ingredients include alkaloids and flavonoids, and modern research has also found that it has antibacterial, anti-inflammatory and immunomodulatory effects. Thi
-
View
The efficacy and functions of mallow seeds
Overview of the efficacy and functions of mallow seedsMallow seeds are a traditional Chinese medicinal material whose main functions includeDiuretic and relieve stranguria, moisturize intestines and relieve constipation, clear away heat and detoxify, is commonly used in clinical Chinese medicine to treat symptoms such as difficulty urinating, edema, constipation and heat sores. Its core function comes from its rich mucus, polysaccharide and mineral components, which can gently regulate human met
-
View
The efficacy and function of mountain turtle
### Efficacy and functions of mountain turtle #### 1. Overview Mountain turtle (scientific name: *Stephania tetrandra*), also known as "Golden Threaded Turtle" or "Fangji", is a traditional Chinese medicinal material mainly distributed in southern my country. Its roots are used as medicine and have the effects of clearing away heat and detoxifying, dispelling wind and relieving pain, diuresis and reducing swelling. It is often used to treat rheumatic arthralgia, edema, sores, swelling and poison
-
View
The efficacy and function of scalding dog spine
Overview of the efficacy and functions of hot dog spineHot dog spine is a processed product of the traditional Chinese medicine dog spine. It hasNourish liver and kidney, strengthen muscles and bones, remove rheumatismWith core functions such as this, it is often used to treat related symptoms caused by soreness and weakness in the waist and knees, rheumatic arthralgia and kidney deficiency. Its mechanism of action is mainly due to the active ingredients such as flavonoids and volatile oils, whi
-
View
Effects and functions of vinegar and myrrh
Below is structured content about the benefits and effects of vinegar and myrrh, generated as per your request:First paragraph: content overviewVinegar myrrh is a commonly used processed product in traditional Chinese medicine. It is processed from myrrh through vinegar. Its main functions are to promote blood circulation and relieve pain, reduce swelling and promote muscle growth. Its core functions are reflected in three aspects: first, it relieves blood stasis pain by promoting blood circulat
-
View
The efficacy and function of Daochi Powder
Overview of the efficacy and functions of Daochi PowderDaochi Powder is one of the classic prescriptions of traditional Chinese medicine. It is mainly used to clear away heat and dampness, relieve stranguria and relieve pain. It is especially good at treating symptoms such as short red urine, sores on the mouth and tongue caused by excessive heart fire or damp heat. Its core functions includeClear the heart, reduce fire, diuretic and relieve stranguria, its secondary function is to relieve urina
-
View
The efficacy and function of dream flower
The efficacy and function of dream flower: the multiple values of traditional herbal medicineDream flower, also known as knotweed or yellow daphne, is a plant with both ornamental and medicinal value. Its core functions includeRelaxing muscles and activating collaterals, reducing swelling and relieving pain, calming nerves and promoting sleep, secondary effects involve antibacterial, anti-inflammatory and improved skin health. The primary and secondary structure is clear: medicinal value is the
-
View
The efficacy and functions of Huangjingzi
Overview of the efficacy and functions of HuangjingziHuang Jing Zi, also known as Bu Jing Zi, is the dried and mature fruit of Vitex japonicus, a plant of the Verbenaceae family, and is widely used in traditional Chinese medicine. Its nature and flavor are pungent, bitter, and warm, and returns to the lung, stomach, and liver meridians.Expelling wind and relieving surface, resolving phlegm and relieving cough, promoting qi and relieving pain, resolving dampness and neutralizingIt has other effec
-
View
The efficacy and function of amethyst
Overview of the efficacy and functions of amethystAmethyst is a traditional Chinese medicine with a long history of medicinal use. Its main functions includeCalming the mind and calming the nerves, warming the lungs and relieving asthma, warming the palace and dispersing cold, suitable for palpitations, insomnia, cough and asthma due to deficiency and cold, and uterine cold in women. Its core role stems from the containedcalcium fluorideAnd other mineral components, modern research has also foun
-
View
The efficacy and role of artemisinin
The efficacy and role of artemisinin: from anti-malaria to the exploration of modern medicineArtemisinin is an active ingredient extracted from the traditional Chinese medicine Artemisia annua. Its most significant effect isAnti malaria, especially has a significant effect on drug-resistant malaria parasites. In addition, research has also found that it has certain value in the fields of anti-inflammation, immune regulation and potential anti-tumor. This article will start with its core function
-
View
Effects and functions of sarsaparilla
Overview of the efficacy and functions of sarsaparillaSarsaparilla is a traditional Chinese medicinal material that has the effects of dispelling wind, removing dampness, reducing swelling and relieving pain, and benefiting joints. It is often used as an auxiliary treatment for rheumatism, bruises, and urinary system diseases. Its main active ingredients include flavonoids, saponins, etc. Modern research has also found its antioxidant and anti-inflammatory effects. In terms of content structure,
