https://www.mayoclinic.org/diseases-conditions/depression/symptoms-causes/syc-20356007
Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest and can interfere with your daily functioning. ... For many people with depression, symptoms usually are severe enough to cause noticeable problems in day-to-day activities, such as work, school, social activities or relationships with others.

https://my.clevelandclinic.org/health/diseases/9290-depression
Clinical depression (major depressive disorder): A diagnosis of major depressive disorder means you've felt sad, low or worthless most days for at least two weeks while also having other symptoms such as sleep problems, loss of interest in activities or change in appetite. This is the most severe form of depression and one of the most common

https://my.clevelandclinic.org/health/diseases/24481-clinical-depression-major-depressive-disorder
Clinical depression, also known as major depressive disorder (MDD), is a mental health condition that causes a persistently low or depressed mood and a loss of interest in activities that once brought joy. Clinical depression can also affect how you sleep, your appetite and your ability to think clearly. These symptoms must be present for at

https://www.nimh.nih.gov/health/topics/depression
Depression (also known as major depression, major depressive disorder, or clinical depression) is a common but serious mood disorder. It causes severe symptoms that affect how a person feels, thinks, and handles daily activities, such as sleeping, eating, or working. To be diagnosed with depression, the symptoms must be present for at least 2

https://www.healthline.com/health/depression
Depression is a mood disorder that can affect a person's daily life. Learn more here. ... In fact, research has shown that over 70 percent of people with depressive disorders also have symptoms

https://www.verywellmind.com/major-depressive-disorder-symptoms-causes-and-treatment-5270926
Major depressive disorder is marked by symptoms such as sadness, loss of interest in previously enjoyed activities, difficulty concentrating, and changes in sleep and appetite. Causes include brain chemistry, genetics, and environmental factors. There are treatments available that can help, including therapy, medication, and lifestyle changes.

https://www.who.int/news-room/fact-sheets/detail/depression
Depressive disorder (also known as depression) is a common mental disorder. It involves a depressed mood or loss of pleasure or interest in activities for long periods of time. Depression is different from regular mood changes and feelings about everyday life. It can affect all aspects of life, including relationships with family, friends and

https://www.healthline.com/health/clinical-depression
Major depressive disorder is a mood disorder that interferes with daily life. Learn about symptoms, causes, and treatment. ... Depression symptoms in older adults are similar to other age groups.

https://www.nimh.nih.gov/health/publications/depression
Depression with symptoms of psychosis is a severe form of depression in which a person experiences psychosis symptoms, such as delusions or hallucinations. Bipolar disorder involves depressive episodes, as well as manic episodes (or less severe hypomanic episodes) with unusually elevated mood, greater irritability, or increased activity level.

https://www.mayoclinic.org/diseases-conditions/depression/diagnosis-treatment/drc-20356013
Other disorders that cause depression symptoms. Several other disorders, such as those below, include depression as a symptom. It's important to get an accurate diagnosis, so you can get appropriate treatment. Bipolar I and II disorders. These mood disorders include mood swings that range from highs (mania) to lows (depression).

https://www.psychologytoday.com/us/conditions/depressive-disorders
Major depressive disorder, or major depression, is manifested in a persistently sad mood accompanied by a number of other symptoms that interfere with the ability to work, study, sleep, eat, and

https://www.verywellhealth.com/major-depressive-disorder-5092483
Symptoms. These are the most common signs and symptoms associated with major depressive disorder, according to the National Institute of Mental Health: Persistent sadness, anxious, or "empty" mood. Feelings of hopelessness, or pessimism. Irritability. Feelings of guilt, worthlessness, or helplessness.

https://psychcentral.com/depression/depression-symptoms-major-depressive-disorder
Persistent depressive disorder : This condition is not as intense, but it drags on for two years or longer. Depressive psychosis : This is a combination of severe depression and delusions or

https://www.webmd.com/depression/major-depression
In addition, according to the DSM-5 -- a manual used to diagnose mental health conditions -- you may have other symptoms with major depression. Those symptoms might include: Fatigue or loss of

https://www.medicalnewstoday.com/articles/326769
Depression is a medical condition that affects about 280 million people globally.It is also called clinical depression or major depressive disorder. There are several types of depression, and the

https://www.msdmanuals.com/professional/psychiatric-disorders/mood-disorders/depressive-disorders
The term depression is often used to refer to any of several depressive disorders. Some are classified in the Diagnostic and Statistical Manual of Mental Disorders, 5th ed, Text Revision (1) by specific symptoms: Major depressive disorder (often called major depression) Persistent depressive disorder (dysthymia)

https://www.webmd.com/depression/guide-chapter-depression-symptoms
Severe Depression Warning Signs. Spotting Depression Disguises. Depression: Recognizing the Physical Signs. Sleep and Depression. Sleep Problems Linked to Depression. Learn more about the symptoms

https://health.usnews.com/conditions/mental-health/depression
Symptoms for major depressive disorder can be mild to severe and may include: Feeling sad, hopeless or despondent. Loss of pleasure or interest in things you once enjoyed. Sleep disturbances. Loss

https://www.mind.org.uk/information-support/types-of-mental-health-problems/depression/symptoms/
Psychotic symptoms. If you experience depression, you might also experience some psychotic symptoms. These may include delusions, such as paranoia.Or they may be hallucinations, such as hearing voices.. If you experience psychotic symptoms as part of depression, they're likely to be linked to your depressed thoughts and feelings.

https://www.healthline.com/health/depression/mild-depression
a lack of motivation. a sudden disinterest in socializing. aches and pains with seemingly no direct cause. daytime sleepiness and fatigue. insomnia. appetite changes. weight changes. reckless

https://www.nhs.uk/mental-health/conditions/depression-in-adults/symptoms/
The psychological symptoms of depression include: continuous low mood or sadness. feeling hopeless and helpless. having low self-esteem. feeling tearful. feeling guilt-ridden. feeling irritable and intolerant of others. having no motivation or interest in things. finding it difficult to make decisions.

https://floridabhcenter.cbcs.usf.edu/wp-content/uploads/2021/03/MDD_Adult-Guidelines-2019-2020.pdf
DSM-5. essive DisorderMajor Depressive Episode:Five (or more) of the following symptoms have been present during the same 2-week period and represent a change from previous functioning; at least one of the symptoms is either (1) depressed. mood or (2) loss of interest or pleasure.Note: Do not include symptoms that are clearly.

https://www.health.harvard.edu/a_to_z/major-depression-a-to-z
Psychotic symptoms also occur in mania. If a person has milder symptoms of mania and does not lose touch with reality, it is called "hypomania" or a hypomanic episode. A major depressive episode may occur within the first two to three months after giving birth to a baby. In that case, it may be called major depressive disorder with peripartum

https://www.msn.com/en-xl/health/medical/harvard-health-publishing-has-answers-to-common-questions-about-major-depressive-disorder/ar-BB1osgGv
The symptoms of major depressive disorder can be subtle at first and then get worse relatively quickly or show themselves more slowly. A common initial symptom is loss of participation and

https://www.psychologytoday.com/intl/blog/experimentations/202406/in-sight-the-biological-diagnosis-of-depression-and-anxiety
With unipolar depression (as contrasted with bipolar disorder), subtypes include atypical and melancholic, and specifiers include severity of symptoms as well as presence or absence of psychotic

https://med.stanford.edu/news/all-news/2024/06/depression-biotypes.html
Williams, who lost her partner to depression in 2015, has focused her work on pioneering the field of precision psychiatry. Around 30% of people with depression have what's known as treatment-resistant depression, meaning multiple kinds of medication or therapy have failed to improve their symptoms. And for up to two-thirds of people with

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9468237/
When the epidemiological and clinical studies were examined, cross-sectional and cohort studies were encountered that revealed an inverse relationship between plasma 25(OH)D 3 and depression symptoms and major depressive disorder [29-33]. In these studies, the cut-off points considered for vitamin D adequacy, insufficiency, and deficiency

https://www.cnn.com/2024/06/20/health/depression-types-brain-treatments-study-wellness/index.html
Six subtypes of major depression have been identified in a new study. ... And about 30% of people diagnosed with depression go on to experience treatment-resistant depression when the disorder

https://www.nimh.nih.gov/health/publications/perinatal-depression
Perinatal depression is a mood disorder that occurs during pregnancy and after childbirth. The symptoms can range from mild to severe. In rare cases, the symptoms are severe enough that a mother and her baby's health and well-being may be at risk. Perinatal depression can be treated.

https://my.clevelandclinic.org/health/diseases/9536-anxiety-disorders
Among people who get treated for IBS, anywhere from 50% to 90% may also have an anxiety disorder or depression. Treatment for IBS may include stress management and psychotherapy to relieve symptoms. ... Anxiety disorder symptoms include feelings of nervousness, panic and fear. You may also have physical symptoms such as sweating and a rapid