sleep deprivation

Researchers Find Molecular Key to Exhaustion Following Sleep Deprivation
03/08/2013 - 11:27

The biological term for that pay-the-piper behavior is “sleep homeostasis,” and now, thanks to a research team at the Perelman School of Medicine, University of Pennsylvania, one of the molecular players in this process has been identified – at least in nematode round worms.

 

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Partial Sleep Deprivation Linked to Obesity
10/24/2012 - 11:27

Evidence linking partial sleep deprivation to energy imbalance is relevant to weight gain prevention and weight loss promotion. A new study published today in the Journal of the Academy of Nutrition and Dietetics bases this finding on an extensive review of literature published over a fifteen-year period.

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Sleep deprivation effect on the immune system mirrors physical stress
06/30/2012 - 06:57

Severe sleep loss jolts the immune system into action, reflecting the same type of immediate response shown during exposure to stress, a new study reports. Researchers in the Netherlands and United Kingdom compared the white blood cell counts of 15 healthy young men under normal and severely sleep-deprived conditions. The greatest changes were seen in the white blood cells known as granulocytes, which showed a loss of day-night rhythmicity, along with increased numbers, particularly at night.

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Middle-of-the-Night PCIs Do Not Adversely Affect Success of Next-Day Procedures
03/30/2012 - 13:43

A single-center study found that percutaneous coronary intervention (PCI) procedures performed during the middle of the night do not adversely affect the safety and effectiveness of procedures performed the next day by the same operator. Findings now available in Catheterization and Cardiovascular Interventions, a journal published by Wiley-Blackwell on behalf of The Society for Cardiovascular Angiography and Interventions (SCAI), show late night work while on call does not worsen performance of the interventionist doing PCIs the next day.

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Kids' Abnormal Breathing During Sleep Linked to Increased Risk for Behavioral Difficulties
03/05/2012 - 11:17

 A study of more than 11,000 children followed for over six years has found that young children with sleep-disordered breathing are prone to developing behavioral difficulties such as hyperactivity and aggressiveness, as well as emotional symptoms and difficulty with peer relationships, according to researchers at Albert Einstein College of Medicine of Yeshiva University. Their study, the largest and most comprehensive of its kind, published online today in the journal Pediatrics.

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Preliminary study examines effects of 'cognitive enhancement' drug on sleep-deprived doctors
10/15/2011 - 06:15

Researchers have carried out a preliminary study looking at the effects of the 'cognitive enhancement' drug modafinil on the performance of doctors who had been deprived of sleep for one night. Modafinil improves performance in mental tasks but has no effect on surgical motor skills in small new study

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