This time "coincides with the afternoon dip, or siesta time, a time where most people are sleepier, " says Axelsson.
这时正是人们困倦或午睡的时候，大部分的人精神低落。
The people with the gene variant were sleepier and more fatigued whether they were fully rested or sleep-deprived, and their sleep was more fragmented.
携带变异基因的人无论是得到充分休息还是被睡眠剥夺都是昏昏欲睡且更疲劳，睡眠时断断续续的多些。
"That might not sound like a lot but it means that you're not quite as sleepy on Sunday night at the normal bedtime and you'll be much sleepier the next day," Prof Lack said.
“一个晚上的测试可能不说明问题，但是它意味着如果你不是按平时的就寝时间沉睡，你会在第二天非常困。”教授Lack说。
"That might not sound like a lot but it means that you're not quite as sleepy on Sunday night at the normal bedtime and you'll be much sleepier the next day, " Prof Lack said.
“一个晚上的测试可能不说完整说明问题，但是它意味着如果你不是按平时的就寝时间沉睡，你会在第二天非常困。”教授Lack说。
"That might not sound like a lot but it means that you're not quite as sleepy on Sunday night at the normal bedtime and you'll be much sleepier the next day, " Prof Lack said.
“一个晚上的测试可能不说完整说明问题，但是它意味着如果你不是按平时的就寝时间沉睡，你会在第二天非常困。”教授Lack说。
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