DAMIEN LOVEGROVE / SCIENCE PHOTO LIBRARY DAMIEN LOVEGROVE / SCIENCE PHOTO LIBRARY
Loneliness and depression. Young girl feeling lonely or depressed. Depression may be expressed by feelings of sadness, withdrawal, and reduced emotional well-being. In young children, depression and loneliness occur less commonly than in adolescents and the elderly. Causes of depression in children and adolescents include neglect, bullying, child abuse, confusion resulting from the onset of puberty, and disruption to their family life.
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