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Discovery – The Secrets of SleepSleep is clearly important-after all, people and animals slumber away a third of their lives–but no one knows why.Most sleep research has focused on health, and sleep has been viewed mainly as a period of rest and rejuvenation for the body.That’s why, for decades, most experts dismissed sleep as a boring, idle time for the brain. What they didn’t realize is that while sleeping bodies lie motionless in bed, the brain’s neurons continue to buzz and chatter. Video:  921 Kbps, 25.0 fps, XVID Mpeg-4Audio: 134 Kbps, 48000 Hz, 2 channels, MPEG Layer-3Duration: 00:46:15