Navigation Links
Extreme sleep durations may affect brain health in later life

BOSTON, MA A new research study led by Brigham and Women's Hospital (BWH) published in The Journal of the American Geriatrics Society in May, shows an association between midlife and later life sleeping habits with memory; and links extreme sleep durations to worse memory in later life. The study suggests that extreme changes in sleep duration from middle age to older age may also worsen memory function.

"Sleep Duration In Midlife and Later Life In Relation to Cognition: The Nurses' Health Study," led by Elizabeth Devore, ScD, instructor in medicine in the Channing Division of Network Medicine at BWH found that women who slept five or fewer hours, or nine or more hours per day, either in midlife or later life, had worse memory, equivalent to nearly two additional years of age, than those sleeping seven hours per day. Women whose sleep duration changed by greater than two hours per day over time had worse memory than women with no change in sleep duration.

This study was the first to evaluate associations of sleep duration at midlife and later life, and change in sleep duration over time, with memory in 15,263 participants of the Nurses' Health Study. Participants were female nurses, aged 70 or older and were free of stroke and depression at the initial cognitive assessment.

"Given the importance of preserving memory into later life, it is critical to identify modifiable factors, such as sleeping habits, that may help achieve this goal," Devore stated. "Our findings suggest that getting an 'average' amount of sleep, seven hours per day, may help maintain memory in later life and that clinical interventions based on sleep therapy should be examined for the prevention of cognitive impairment."

Specifically, researchers report that:

  • Extreme sleep durations may adversely affect memory at older ages, regardless of whether they occur at mid-life or later-life.

  • Greater changes in sleep duration appear to negatively influence memory in older adults.

  • Women with sleep durations that changed by two or more hours per day from midlife to later life performed worse on memory tests than women with no change in sleep duration, equivalent to being one to two years older in age, compared to those whose sleep duration did not change during that time period.

"These findings add to our knowledge about how sleep impacts memory," said Devore. "More research is needed to confirm these findings and explore possible mechanisms underlying these associations."


Contact: Elaine St. Peter
Brigham and Women's Hospital

Related medicine news :

1. Most Extreme Preemies Grow Into Happy, Healthy Teens
2. Electric Fans May Have No Effect in Extreme Heat: Study
3. Extreme Heat Biggest Weather Killer, Expert Warns
4. Heart Deaths Rise With Extreme Temperatures, Study Finds
5. Guidelines developed for extremely premature infants at NCH proven to be life-changing
6. Resistance to low-dose aspirin therapy extremely rare
7. Oxygen Treatment May Improve the Odds for Extreme Preemies
8. Researches Vitamin D Deficiency & Using a More Natural Approach
9. U of T and Harvard study finds growing weight extremes in the developing world
10. High Medical Bills Driving Some Americans to Extreme Measures
11. Extreme Cold Snap Brings Unexpected Health Risks
Post Your Comments:
(Date:12/1/2015)... ... December 01, 2015 , ... For many X-rays taken ... for accurate interpretation by the radiologist. The marking utensils are so small, however, ... has found a way to alleviate this problem. , He developed the patent-pending ...
(Date:12/1/2015)... , ... December 01, 2015 , ... ... of Excellence (BHCOE) today announced that the organization has awarded Education and Developmental ... with a Distinguished Award. The award celebrates exceptional special needs providers that excel ...
(Date:12/1/2015)... MA (PRWEB) , ... December 01, 2015 , ... Lutronic, ... release of Clarity, the latest addition to the devices for sale in the United ... 755 nm Alexandrite and long-pulsed 1064 nm Nd:YAG lasers, into a single platform that ...
(Date:12/1/2015)... Menlo Park, CA (PRWEB) , ... December 01, 2015 , ... ... Challenge (XTC) has selected 10 semi-finalists to head to Las Vegas for CES 2016, ... distinguished judges including CEO of Consumer Technology Association Gary Shapiro, Founding Partner of Pacific ...
(Date:12/1/2015)... China (PRWEB) , ... December 01, 2015 , ... Nurotron ... result in its largest order to date. , The order will be from ... systems. Nurotron’s Venus Cochlear Implant System is an effective solution for children and adults ...
Breaking Medicine News(10 mins):
(Date:12/1/2015)... 1, 2015 Array BioPharma Inc. ... its Chief Executive Officer, Ron Squarer ... Healthcare Conference in New York.  The public ... through a webcast on the Array BioPharma ... --> , ...
(Date:12/1/2015)... 2015 Assurex Health, Inc. today announced ... healthcare providers an expanded range of options in ... from depression, anxiety, bipolar disorder, posttraumatic stress disorder ... i .   --> ... addition of two new drug classes, 17 FDA-approved ...
(Date:12/1/2015)... 2015 --> ... "Nucleic Acid Labeling Market by Product (Reagents & Kits, ... In Vitro Transcription, Reverse Transcription, End Labeling), by Region ... global market is expected to reach USD 1,925.7 Million ... at a CAGR of 8.65%. Browse 77 ...
Breaking Medicine Technology: