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Paradoxical timing of the circadian rhythm of sleep propensity serves to consolidate sleep and wakefulness in humans
Unusual timing of the body’s sleep-wake rhythm helps strengthen both sleep and wakefulness in humans
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Abstract
Forced desynchrony of the sleep-wake cycle in eight men over 33-36 days revealed that the circadian pacemaker and sleep homeostat contribute about equally to sleep consolidation.
- Analysis of 175 recorded sleep episodes showed a significant interaction between the circadian pacemaker and the sleep homeostat in sleep tendency.
- The timing of the phase relationship between these processes is crucial for maintaining consolidated sleep at night.
- A similar phase relationship supports sustained wakefulness during the day.
- Both biological systems appear to work in tandem to regulate sleep patterns in a time-isolated environment.
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