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Depression (also called major depressive disorder or clinical depression) is a common but serious mood disorder [1]. It causes severe symptoms that affect how a person feels, thinks and acts [2], including persistent feelings of sadness, emptiness, and loss of joy [3]. It affects more than 280 million people of all ages (about 3.5% of the global population) [5] and can interfere with normal everyday functioning [4]. Symptoms may include changes in appetite, sleep patterns, fatigue, difficulty concentrating or making decisions, restlessness or slowed behavior[6][7][8]. Treatment options may include medications such as antidepressants and psychotherapy.


[1]: NIMH ยป Depression (https://www.nimh.nih.gov/health/topics/depression)
[2]: What Is Depression? - Psychiatry.org (https://www.psychiatry.org/patients-families/depression/what-is-depression)
[3]: Depression: What It Is, Symptoms, Causes, Treatment, and More (https://www.healthline.com/health/depression)
[4]: Mental Health Conditions: Depression and Anxiety | Overviews of ... (https://www.cdc.gov/tobacco/campaign/tips/diseases/depression-anxiety.html)
[5]: Depression (mood) - Wikipedia (https://en.wikipedia.org/wiki/Depression_(mood))
[6]: What Is Depression? (https://www.webmd.com/depression/guide/detecting-depression)
[7]: Depression: What it is, symptoms, causes, treatment, and more (https://www.medicalnewstoday.com/articles/8933)
[8]: Depression Center: Symptoms, Causes, Medications, and Therapies (https://www.webmd.com/depression/default.htm)

AI

Depression is a mental health disorder characterized by persistent feelings of sadness, hopelessness, and worthlessness. It can affect people of all ages and backgrounds and can have a significant impact on daily life. Symptoms may include changes in sleep patterns, appetite, energy levels, concentration, self-esteem, and interest in activities that were once enjoyable. Treatment for depression typically includes medication or psychotherapy to help manage symptoms.