Teenagers who are compulsive internet users are more likely to be depressed. Researchers from the School of Medicine in Sydney and Sun-Yat-Sen University in China studied over 1,000 teenagers - who had an average age of 15 - and asked them about their internet use. They found that 6% of the sample felt depressed, moody and anxious when they were not on the internet. Nine months later the teenagers were examined again for signs of anxiety and depression; the 'pathological' internet users were two-and-a-half times more likely to show signs of depression.
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