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Do you often listen to music through earphones? Then you should be .More than 1,000,000,000 young people are at risk of losing their hearing from loud music, a new World Health Organization (WHO) report says.The study that among people aged 12 to 35, nearly half were at risk because of levels of sound on MP3 players and smart .Volumes (音量) over 85 decibels (分贝) for eight hours or 100 decibels for 15 minutes can damage your ears.Traffic noise at rush hour can reach 85 decibels.Perhaps it’s time the volume.