Latest sleep deprivation Stories

Women who get less sleep are more likely to have higher levels of biomarkers linked to heart disease.According to British researchers who followed more than 4,600 people in their mid-30s, women who reported sleeping seven hours a night had higher levels of IL-6 than those who reported sleeping eight hours. Those sleeping five hours or less had higher levels of hs-CRP. The findings held true even after the investigators adjusted the results to take other factors influencing sleep into...

Imaging study suggests why some are resilient and others vulnerable to sleep deprivationNew imaging research in the June 24 issue of The Journal of Neuroscience helps explain why sleep deprivation affects some people more than others. After staying awake all night, those who are genetically vulnerable to sleep loss showed reduced brain activity, while those who are genetically resilient showed expanded brain activity, the study found. The findings help explain individual differences in the...

Increased sleep disturbances are associated with lower education, income or being unmarried or unemployed, U.S. researchers said. Lead author Michael Grandner, a post-doctoral fellow at the University of Pennsylvania in Philadelphia, said the study involved data from 159,856 people. The study also found that gender, younger age and being single negatively affect sleep. Women reported more sleep problems than men -- 22 percent vs. 16 percent -- especially between the ages of 40-65. In...

 According to a research abstract that will be presented on Thursday, June11, at SLEEP 2009, the 23rd Annual Meeting of the Associated Professional Sleep Societies, sleep selectively preservers memories that are emotionally salient and relevant to future goals when sleep follows soon after learning. Effects persist for as long as four months after the memory is created.Results indicate that the sleeping brain seems to calculate what is most important about an experience and selects only...

Sleeping too long or too little can both raise your risk for developing diabetes, according to a new study.People who sleep for more than eight hours a night may be particularly vulnerable to the serious condition, although researchers said more studies are needed to identify the factors that could explain the relationship between long sleep durations and diabetes.The study also revealed that both blacks and whites who are obese tend to sleep for shorter periods of time (five hours a night or...

Older adults cope with sleep deprivation better than young adults, U.S. researchers said. The older adults -- ages 59-82 years -- showed more resiliency to total sleep deprivation than young adults -- ages 19-38 years -- on a range of measures of cognitive performance, including working memory, selective attention/inhibition, and verbal encoding and retrieval. Performance of young adults significantly declined on all three tasks during total sleep deprivation while that of older adults did...

High-quality sleep is correlated with better grades, especially math, but sleeping late on the weekend is linked to worse grades, U.S. researcher said. The study found that higher math scores were related to greater sleep quality, less awakenings and increased sleep efficiency, but higher English and history scores were associated with less difficulty awakening. Principal investigator Jennifer C. Cousins, a postdoctoral fellow at the University of Pittsburgh Medical Center, said the...

 According to a research abstract that will be presented on Wednesday, June 10, at SLEEP 2009, the 23rd Annual Meeting of the Associated Professional Sleep Societies, older adults are able to retain better cognitive functioning during sleep deprivation than young adults.Results indicate that older adults (ages 59 through 82 years) showed more resiliency to total sleep deprivation (TSD) than young adults (ages 19 to 38 years) on a range of measures of cognitive performance, including...

According to a research abstract that will be presented on Wednesday, June 10, at SLEEP 2009, the 23rd Annual Meeting of the Associated Professional Sleep Societies, increased sleep disturbances are associated with lower education, income or being unmarried or unemployed. Disturbances are much more likely in multiracial individuals.Results indicate that individuals with higher socioeconomic status and education levels sleep better than those of lower socioeconomic status. The study also found...

 Quality, in addition to quantity, is important for maintaining health, according to a research abstract that will be presented on Wednesday, June 10, at SLEEP 2009, the 23rd Annual Meeting of the Associated Professional Sleep Societies.Results indicate that over the average follow-up of eight years, 854 of the 5,614 participants died. Two sleep-stage transition types were associated with higher mortality risk: wake-to-non-REM and non-REM-to-wake.According to lead author Alison Laffan,...