New research in mice by ut Southwestern Medical Center scientists suggest that ghrelin might also work in the brain to make some people keep eating "pleasurable" foods when they're already full.

犹他州西南医学中心科学家关于小鼠的最新研究表明，脑肠肽也可以作用于大脑使一些人即使饱了仍然继续“愉快的”进食。

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"Sleep may be essential for life," says Jerry Siegel, a neuroscientist at UCLA's Center for Sleep Research. "It's certainly essential for optimum brain function."

加州大学洛山矶分校睡眠研究中心神经学家杰瑞·西格尔坦言睡眠是生命不可缺少的，当然也是大脑最优运作不可缺的。

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The latest research, carried out at Boston University Medical Center, involved regular brain scans on 198 older volunteers over a 12-year period.

由波士顿大学医疗中心完成的最新研究，在12年多时间里，对198名老年志愿者进行定期大脑扫描。

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The brain tumor research center at Duke is conducting several clinical trials in malignant glioma.

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Kevin Guskiewicz, director of the University of North Carolina's Matthew Gfeller Sport-Related Traumatic Brain Injury Research Center, said the "vast majority" of kids playing in youth football leagues aren't going to have the type of exposure to injury NFL players have.

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"If the child is horrendously disruptive -- self-injury and hurting themselves -- yes, use medication in young children, " said Dr. Mani Pavuluri, director of the Pediatric Brain Research and Intervention Center at the University of Illinois at Chicago.

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