Do you function well on fewer than six hours of sleep a night? You may be among a group of people known as “short sleepers.” Scientists recently found that as much as 30% of the US population may be in this group, but they still don’t know what determines how much sleep an individual needs.
Learn more at Medical Daily: http://www.medicaldaily.com/people-habitually-short-sleep-may-have-advanced-brain-connections-need-less-398259
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若果只有少於六小時的睡眠，你還能保持清醒去處理日常事務嗎？如果你的確可以，你可能屬於 「短睡者」這一群。
科學家最近發現，美國人口中多達30% 是「短睡者」，但他們仍然不知道是什麼因素決定個人所需的睡眠時間。
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