Also called major depressive disorder or clinical depression, it affects how you feel, think and behave and can lead to a variety of emotional and physical problems. However, depression can cause many symptoms in the body as well as mood problems. Depression is a common mental health problem that involves a low mood and a loss of interest in activities. A legacy of the depression was a large rise in the number of long-term unemployed workers and the share of unemployment which was long term. An area of low atmospheric pressure occurring between 30° and 60°. An area that is sunk below its surroundings; a hollow. Chapter 1 reviews the epidemiology of depression and bipolar disorder; the definition of the disorders; and psychological, social, and biological factors that have been shown to increase the risk of mood disorders in children and adolescents. This low is some 1 500–3 000 km in diameter and is associated with the removal of air at height and the meeting of cold and warm air masses in the lower atmosphere. The condition of being depressed. 2. Depression is the commonest mental illness, affecting millions of people globally. Depression is more than just sadness. Depression: An illness that involves the body, mood, and thoughts and that affects the way a person eats, sleeps, feels about himself or herself, and thinks about things. Many people think that depression just means a person is very sad . It may be caused by genetic factors, conflicts, stressful life events or transitions, and loss of a loved one. Overview. n. 1. a. Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest. 3. Define depression. b. The act of depressing. Depression (also called major depressive disorder, unipolar depression or clinical depression) is a mental illness. The AstraZeneca/Oxford University Covid-19 vaccine has reported interim results from a phase 3 trial showing the jab can prevent the majority of people from developing the disease. People with depression cannot merely 'pull themselves together' and get better. depression synonyms, depression pronunciation, depression translation, English dictionary definition of depression. See more. People with depression may experience a lack of interest and pleasure in daily activities, significant weight loss or gain, insomnia or excessive sleeping, lack of energy, inability to concentrate, feelings of worthlessness or excessive guilt and recurrent thoughts of death or suicide. Great depression definition, the economic crisis and period of low business activity in the U.S. and other countries, roughly beginning with the stock-market crash in October, 1929, and continuing through most of the 1930s. It is not a sign of personal weakness or a condition that can be wished away. 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