Navigation Links
Women's study finds longevity means getting just enough sleep
Date:9/30/2010

A new study, derived from novel sleep research conducted by University of California, San Diego researchers 14 years earlier, suggests that the secret to a long life may come with just enough sleep. Less than five hours a night is probably not enough; eight hours is probably too much.

A team of scientists, headed by Daniel F. Kripke, MD, professor emeritus of psychiatry at UC San Diego School of Medicine, revisited original research conducted between 1995 and 1999. In that earlier study, part of the Women's Health Initiative, Kripke and colleagues had monitored 459 women living in San Diego (ranging in age from 50 to 81) to determine if sleep duration could be associated with mortality.

Fourteen years later, they returned to see who was still alive and well.

Of the original participants, 444 were located and evaluated. Eighty-six women had died. Previous studies, based upon questionnaires of people's sleep habits, had posited that sleeping 6.5 to 7.5 hours per night was associated with best survival. Kripke and colleagues, whose 1990s research had used wrist activity monitors to record sleep durations, essentially confirmed those findings, but with a twist.

"The surprise was that when sleep was measured objectively, the best survival was observed among women who slept 5 to 6.5 hours," Kripke said. "Women who slept less than five hours a night or more than 6.5 hours were less likely to be alive at the 14-year follow-up."

The findings are published online in the journal Sleep Medicine.

Kripke said the study should allay some people's fears that they're not getting enough sleep. "This means that women who sleep as little as five to six-and-a-half hours have nothing to worry about since that amount of sleep is evidently consistent with excellent survival. That is actually about the average measured sleep duration for San Diego women."

Researchers uncovered other interesting findings as well. For example, among older women, obstructive sleep apnea (pauses in breathing during sleep) did not predict increased mortality risk. "Although apneas may be associated with increased mortality risk among those under 60, it does not seem to carry a risk in the older age group, particularly for women," Kripke said.


'/>"/>

Contact: Scott Lafee
slafee@ucsd.edu
619-543-6163
University of California -- San Diego
Source:Eurekalert

Related medicine news :

1. TGen-Mayo Clinic study discovers role of DNA methylation in multiple myeloma blood cancer
2. Study to investigate menstrual blood-derived stem cells as potential stroke therapy
3. Researchers to study effects of Mass. health reform
4. Mammograms Save Lives for Women in Their 40s, Study Says
5. MD Anderson study finds increases in 5-, 10-year survival at every stage of breast cancer
6. Study finds women with triple negative breast cancer and BRCA mutations have lower risk of recurrence
7. UT MD Anderson study finds women treated for breast cancer while pregnant have improved survival
8. Anti-Inflammatory Helps Treat Bacterial Meningitis: Study
9. UTHealth researcher receives grant for Alzheimers study
10. Dirty hands, dirty mouths: U-M study finds a need to clean the body part that lies
11. Study Finds Home Dialysis as Good as Hemodialysis at Centers
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/16/2017)... ... ... California Southern University has named Dr. Steven Beazley University President. ... a core faculty member, teaching master’s and doctoral courses in the university’s School of ... where he earned his Doctor of Psychology degree in 1998. Dr. Beazley also has ...
(Date:1/16/2017)... ... January 16, 2017 , ... With the Grand Opening Event planned for February ... by sports teams and the general public. Built in five months by Centerpoint, the ... converted into basketball or pickleball courts. The space is also suitable for indoor soccer ...
(Date:1/16/2017)... ... January 16, 2017 , ... As New York’s fastest ... Giamos, MD to their medical staff, according to eye surgeon, Jeffrey Martin, MD, ... Care, a division of SightMD. Dr. Giamos will practice primarily out of SightMD’s ...
(Date:1/16/2017)... , ... January 16, 2017 , ... ... their recent partnership with an innovator in the wheelchair accessibility industry, BraunAbility ... their dealer salespeople to sell wheelchair accessible vehicles. With this new incentive plan, ...
(Date:1/16/2017)... Hills, CA (PRWEB) , ... January 16, 2017 ... ... a manuscript in the Aesthetic Surgery Journal , the official journal of ... he conducted on lower eyelid retraction surgery. The procedure is designed to correct ...
Breaking Medicine News(10 mins):
(Date:1/17/2017)... YORK , Jan. 17, 2017 Immune ... stage biopharmaceutical company, announced today that it will hold ... Symposium on Acute Leukemias (ISAL) XVI in ... is entitled:  "Reinforcing the Efficacy of Immunotherapy for the ... take place on Monday February 20 th , 2017 from ...
(Date:1/17/2017)... Jan. 17, 2017 Interpace Diagnostics Group, Inc., (NASDAQ: ... molecular diagnostic tests and pathology services for evaluating risks ... letter dated January 13, 2017 from the NASDAQ Listing ... with the requirement of the NASDAQ Stock Market to ... share. The letter noted that for the ...
(Date:1/17/2017)... -- Research and Markets has announced the addition of the ... offering. ... comprehensive report, identifies and profiles the leading 200 manufacturers and distributors of ... the United States and Europe ... . Profile information for each company in The Top ...
Breaking Medicine Technology: