北卡大学教堂山医学院的基因教授介绍说，WilhelmsenCYP2E1酶在大脑中工作，而这并不是酒精代谢的主要地方。

The CYP2E1 enzyme works in the brain, which is not the major player in alcohol metabolism, says Wilhelmsen, a genetics professor at the University of North Carolina-Chapel Hill School of Medicine.

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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。

"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."

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