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Daytime Sleep Accelerates Cardiovascular Recovery after Psychological Stress



Sleep restriction and poor sleep quality is linked with cardiovascular morbidity.


The present study aimed to explore the influence of daytime sleep supplementation on cardiovascular reactivity.


Participants (N = 85) were generally healthy young adults and were randomized to a 60-min polysomnographically-monitored sleep condition or to a no-sleep condition. Participants then completed a standard three-phase mental stress reactivity task.


Significantly lower mean arterial pressure means were found in the recovery phase of the stress reactivity task among participants that accrued more than 45 min of daytime sleep.


These findings suggest daytime sleep may offer cardiovascular benefit in the form of greater cardiovascular recovery from psychological stress. Further research should assess daytime sleep characteristics (time of day, length, and architecture) on cardiovascular response, in an effort to better understand its role as a possible recuperative agent against suboptimal nocturnal sleep patterns.

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The authors would like to thank Amy Kimicata, Catie Vance, Lenny Costantini, and David Domachowski for their assistance with data collection and for their comments on an earlier draft of this manuscript. This research was supported by the FIPSE Endowed Fund and the Shanbrom Fund at Allegheny College.

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Correspondence to Sarah M. Conklin.

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Brindle, R.C., Conklin, S.M. Daytime Sleep Accelerates Cardiovascular Recovery after Psychological Stress. Int.J. Behav. Med. 19, 111–114 (2012).

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  • Nocturnal sleep
  • Cardiovascular reactivity
  • Daytime sleep
  • Cardiovascular disease
  • Polysomnography
  • Cardiovascular recovery