10. China
College Students are already showing signs of depression in China, the number 10 0n our list of unhappiest, most depressing and saddest countries in the world. Kids as young as primary and middle school age are already suffering from various mental illnesses. China’s depression case is approximately 54.8 million. The suicide cases are possibly connected with the depression people are going through, but researchers do not directly point to this as the reason.
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