Changes

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==變體==

==變種==

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===第一主段較晚===

===延遲第一主段===

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===夜班===

===Night shift===

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==生活模式上的考量==

==Lifestyle Considerations==

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==參考文獻==

== References ==

{{reflist|refs=

{{reflist|refs=

<ref name="wehr">{{cite journal |vauthors=Wehr TA |date=1992 |title=In short photoperiods, human sleep is biphasic |journal=Journal of Sleep Research |volume=1 |issue=2 |pages=103-107 |doi=10.1111/j.1365-2869.1992.tb00019.x}}</ref>

<ref name="wehr">{{cite journal |vauthors=Wehr TA |date=1992 |title=In short photoperiods, human sleep is biphasic |journal=Journal of Sleep Research |volume=1 |issue=2 |pages=103-107 |doi=10.1111/j.1365-2869.1992.tb00019.x}}</ref>

{{TNT|Polyphasic Sleep Schedules}}

{{TNT|Polyphasic Sleep Schedules}}

[[Category:Schedules]]

[[Category:Schedules]]