state of feeling sad : low spirits : melancholy specifically : a mood disorder that is marked by varying degrees of sadness, despair, and loneliness and that is typically accompanied by inactivity, guilt, loss of concentration, social withdrawal, sleep disturbances, and sometimes suicidal tendencies
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Answer:
Depression is a mood disorder that causes a persistent feeling of sadness and loss of interest.
Answer:
state of feeling sad : low spirits : melancholy specifically : a mood disorder that is marked by varying degrees of sadness, despair, and loneliness and that is typically accompanied by inactivity, guilt, loss of concentration, social withdrawal, sleep disturbances, and sometimes suicidal tendencies