This document discusses childhood depression, including what it is, its symptoms, causes, social impacts, and treatments. Childhood depression is a form of depression that can affect children as young as 3-12 years old, with symptoms including irritability, disruptive behavior, social withdrawal, sadness, changes in appetite and sleep, and low energy. It can be caused by biological factors like genetics and brain function, cognitive factors like learned helplessness, and social factors such as a depressed mother or impaired parent relationship. Social impacts include a lack of social interaction, loss of interest, antisocial behavior, and impaired relationships. Current treatments include psychotherapy and medication.