Current location:Home page >> health information

What is mental illness?

2026-04-01 14:19:29

Overview and content structure of mental illness

Mental illness is a health problem that affects mood, thinking, or behavior and may cause an individual to suffer from impairment or distress. The main content is divided into four parts:Definition and Classification(Such as depression, anxiety, etc.),Common symptoms(mood swings, cognitive impairment, etc.),Causes and risk factors(genetics, environment, etc.), andTreatment and Management(Drugs, psychotherapy, etc.). The focus is to help the public scientifically understand mental illness, eliminate stigma, and provide practical coping advice.

Definition and classification of mental illness

What is mental illness?

Mental illness is an abnormal brain function caused by biological, psychological or social factors. International standards (such as DSM-5 or ICD-11) classify it intomood disorders(such as depression),anxiety disorder(such as generalized anxiety),SchizophreniaWait. For example, depression presents with persistent low mood, while schizophrenia may be accompanied by hallucinations and delusions. Classification helps with accurate diagnosis and treatment, but individual differences need to be noted.

Common symptoms and early recognition

Symptoms of mental illness vary and may appear emotionallyexcessively sad or excited; Cognitive manifestations include inattention or delusions; behavioral manifestations include social withdrawal or impulsivity. For example, people with bipolar disorder experience extreme mood swings. Recognizing symptoms early and seeking professional evaluation is key to avoid misunderstandings that delay treatment.

Analysis of causes and risk factors

The causes of mental illness are complex,genetic factors(such as family history),Brain chemical imbalance(such as serotonin abnormalities),traumatic event(such as childhood abuse) orchronic stressmay be induced. For example, research shows that anxiety disorders are associated with overactivity of the amygdala. Understanding risk factors can help prevent disease, but there is no single cause of disease.

Treatment and Management Strategies

Treatment usually combinesmedicine(such as the antidepressant sertraline),psychotherapy(such as cognitive behavioral therapy) andsocial support. Some patients require long-term management, such as olanzapine and other drugs for schizophrenia. Rehabilitation also requires family participation and community resource support, such as the American NAMI organization that provides patient education. The goals of treatment are to improve function and quality of life.

Examples of Common Medications for Treating Mental Illnesses
disease typeDrug nameManufacturer
depressionSertraline (Zoloft)Pfizer
bipolar disorderLithium salt (Lithium)Multiple generic drug manufacturers
SchizophreniaOlanzapine (Zyprexa)Eli Lilly

Citing sources

1. American Psychiatric Association (APA) Diagnostic and Statistical Manual of Mental Disorders (DSM-5)
2. World Health Organization (WHO) "International Classification of Diseases (ICD-11)"
3. Public education materials from the official website of the National Alliance on Mental Health (NAMI)
4. Research on neuroplasticity by Professor John Ratey of Harvard Medical School ("Spark: The Revolutionary New Science of Exercise and the Brain")

Relevant knowledge

Chinese medicinal materials

More

Friendly links