关于这群睡眠时间很短的精英们的数据很少，一部分是因为他们很难被注意；另一方面是因为他们一般不会去治疗，因为他们不认为他们的睡眠习惯不正常或者是紊乱的。

There isn't much data on these short sleepers, in part because they're hard to find; they don't typically seek treatment, since they don't think of their sleep habits as unusual or disordered.

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嗜睡是一种慢性的神经紊乱，它会影响到大脑中控制人体睡眠时间的部分。

Narcolepsy is a chronic neurological disorder, affecting the part of the brain that regulates when to be asleep and when to be awake.

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