Navigation Links
Lack of Sleep During Pregnancy Ups Risk of High Blood Pressure
Date:10/1/2010

By Serena Gordon
HealthDay Reporter

FRIDAY, Oct. 1 (HealthDay News) -- A good night's sleep when you're pregnant may help keep your blood pressure levels normal, new research suggests.

Pregnant women who got less than six hours of nightly sleep during early pregnancy had systolic blood pressure readings in their last trimester that were nearly 4 mm/Hg higher than women who slept nine hours nightly, the study found. And women who got less than five hours of sleep increased their odds of developing preeclampsia -- a serious pregnancy complication related to high blood pressure -- more than ninefold.

On the other hand, getting too much sleep could also be a problem: women who reported sleeping more than 10 hours a night in their first trimester had more than a twofold increase in the risk of developing preeclampsia, according to the study published in the October issue of the journal Sleep.

"Women, in general, need about seven to nine hours of sleep during pregnancy, preferably nine hours. Getting less than that amount can have health affects," said study author Michelle Williams, a professor of epidemiology and global health at the University of Washington, and co-director of the Center for Perinatal Studies at the Swedish Medical Center in Seattle.

"Women generally already know that they're eating well and getting enough exercise for two during pregnancy. Our study suggests that women should also aspire to sleep well for two," said Williams.

But, she added, because the current study is one of the first to show this association, its findings need to be confirmed by other researchers before any recommendations can be made.

The study included 1,272 healthy pregnant women who were recruited for the study during prenatal care visits to the Swedish Medical Center in Seattle between December 2003 and July 2006.

All the women reported information on their lifestyles and health characteristics, as well as sleeping habits, in an initial interview done around 14 weeks' gestation. Blood pressure was measured periodically throughout pregnancy.

Sleep duration didn't appear to have an effect on blood pressure levels in the first and second trimesters of pregnancy. However, during the third trimester, women who slept less than six hours a night had an average systolic (that's the top number in a blood pressure reading) blood pressure that was 3.72 mm/Hg higher than women who slept nine hours. Even women who slept seven to eight hours a night had systolic blood pressure readings that were 2.43 mm/Hg higher than women who slept nine hours.

The study also found that systolic blood pressure was 4.21 mm/Hg higher in women who slept more than 10 hours each night.

To better assess what such differences in blood pressure might mean to pregnant women, the researchers also looked at the effect of sleep time on the risk of developing preeclampsia, which can have significant health consequences for both the mother and the baby.

The researchers found that women who slept less than five hours a night increased their odds of developing preeclampsia more than 9.5 times, and those who stayed in bed more than 10 hours had more than a twofold increased risk of preeclampsia.

Williams said the current study wasn't designed to find the cause behind these associations, but that the researchers theorize that changes in the body's circadian rhythm may occur when sleep habits change during pregnancy, and that these changes may cause hormonal changes that affect blood pressure levels.

"This is a very important study, but it's just a beginning," said Dr. Mary Rosser, an obstetrician and gynecologist at Montefiore Medical Center in New York City. Rosser said that there are numerous changes that occur during pregnancy that could affect blood pressure levels, such as the weight gain that's typical during pregnancy. Even if weight alone doesn't affect blood pressure levels, Rosser said that the extra weight could cause sleep apnea, which is known to raise blood pressure.

But, Rosser added, it's definitely a good idea for women to get a good night's sleep, although doing so often becomes difficult as a pregnancy progresses.

"Women often take care of other people, but pregnant women need to carve out time to rest, either at night or with naps during the day," she said. Rosser also recommended avoiding caffeinated beverages altogether, and making sure you get enough water during the day. Women may also sleep better if they exercise during the day, she said.

More information

Learn more about high blood pressure during pregnancy from the March of Dimes.

SOURCES: Michelle A. Williams, Sc.D., professor, epidemiology and global health, University of Washington, and co-director, Center for Perinatal Studies, Swedish Medical Center, Seattle; Mary Rosser, M.D., obstetrician/gynecologist, Montefiore Medical Center, and assistant professor, obstetrics, gynecology and women's health, Albert Einstein School of Medicine, New York City; October 2010 Sleep


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Obstructive Sleep Apnea in Kids May Have Genetic Cause
2. Sleep HealthCenters to Sponsor North East Sleep Society 2010
3. America's Hidden Pandemic: 100 Million Suffer From Sleep Problems
4. Solutions for Sleep Problems: Harvard's Improving Sleep Special Health Report and New Sleep Apnea Video
5. Behavioral therapy improves sleep and lives of patients with pain
6. Sleep problems and sleepiness increase the risk of motor vehicle accidents in adolescents
7. Severe sleep apnea decreases frequency of nightmare recall
8. Severe Sleep Apnea Has Silver Lining
9. The role of sleep in brain development
10. Sleep More, Lose Weight – Sleeplessness Linked to Obesity
11. National Sleep Awareness Week(R) (March 7-13): How Are You Sleeping?
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Lack of Sleep During Pregnancy Ups Risk of High Blood Pressure 
(Date:6/27/2016)... ... 2016 , ... "FCPX editors can now reveal their media with growing colorful ... Christina Austin - CEO of Pixel Film Studios. , ProSlice Color brings the ... can now reveal the media of their split screens with growing colorful panels. , ...
(Date:6/27/2016)... , ... June 27, 2016 ... ... the patient payment industry today announced its strategic partnership with Connance, a ... workflows. , The two companies’ proven, proprietary technology combine to provide health ...
(Date:6/27/2016)... ... , ... TopConsumerReviews.com recently awarded their highest five-star rating to Best Buy Eyeglasses, ... the United States and Canada wear eyeglasses. Once considered to be a purely functional ... a fashion statement. Even celebrities use glasses as a way of creating an iconic ...
(Date:6/26/2016)... Battle Creek, Michigan (PRWEB) , ... June 26, 2016 , ... ... abuse, joined as sponsor of the 2016 Cereal Festival and World’s Longest Breakfast Table ... held in honor of the city’s history as home to some of the world’s ...
(Date:6/26/2016)... ... , ... PawPaws brand pet supplements owned by Whole Health Supply ... health of felines. The formula is all-natural and is made from Chinese herbs that ... Cat Kidney Support Supplement Soft Chews are Astragalus Root Extract and Rehmannia Root ...
Breaking Medicine News(10 mins):
(Date:6/26/2016)... June 27, 2016  VMS Rehab Systems, Inc. ( ... take whatever measures required to build a strong and ... is currently listed on the OTC Markets-pink current trading ... and CEO, "We are seeing an anomaly in market ... not only by the Company, but shareholders and market ...
(Date:6/24/2016)...  Collagen Matrix, Inc., ("Collagen Matrix") the driving ... collagen and mineral based medical devices for tissue ... Messer has joined the company as Vice ... growing portfolio of oral surgery, neurosurgery, orthopaedic and ... the Collagen Matrix executive team as an accomplished ...
(Date:6/24/2016)... Dublin ... of the " Global Markets for Spectroscopy Equipment" ... This report focuses on the global ... including its applications in various applications. The report deals ... three main industries: pharmaceutical and biotechnology, food and beverage, ...
Breaking Medicine Technology: