Navigation Links
Lack of Sleep Hurts Women's Hearts Most

Creates more stress, biomarkers for diabetes, heart disease than in males

FRIDAY, March 21 (HealthDay News) -- Women suffer more damage to their cardiovascular health from poor sleep than men do, and researchers at Duke University Medical Center believe they've determined why.

They found that poor sleep is associated with greater psychological distress and higher levels of biomarkers associated with increased risk of type 2 diabetes and heart disease. They also found that these associations are stronger in women than in men.

"This is the first empirical evidence that supports what we have observed about the role of gender and its effects upon sleep and health," study author Edward Suarez, an associate professor in the department of psychiatry and behavioral sciences, said in a prepared statement.

"The study suggests that poor sleep -- measured by the total amount of sleep, the degree of awakening during the night, and most importantly, how long it takes to get to sleep -- may have more serious health consequences for women than for men," he said.

The study was published online in the journal Brain, Behavior and Immunity.

Even though women are twice as likely as men to report sleep problems, most sleep studies in the past have focused on men, said Suarez, who added that this pattern has been slowly changing in recent years.

This new study included 210 healthy middle-aged women and men without any history of diagnosed sleep disorders. None of them smoked or took any medications on a daily basis. The participants filled out a standard sleep quality questionnaire and were assessed for levels of depression, anger, hostility and perceived social support. Blood samples from the participants were analyzed for levels of biomarkers associated with increased risk of diabetes and heart disease.

About 40 percent of the participants were classified as poor sleepers, meaning they had frequent problems falling asleep or awoke frequently during the night. While the men and women in the study had similar sleep quality ratings, their risk profiles were dramatically different, the researchers said.

"We found that for women, poor sleep is strongly associated with high levels of psychological distress, and greater feelings of hostility, depression and anger. In contrast, these feelings were not associated with the same degree of sleep disruption in men," Suarez said.

Women who were poor sleepers also had higher levels of C-reactive protein and interleukin-6 -- inflammation biomarkers associated with increased risk of heart disease and higher levels of insulin.

"Interestingly, it appears that it's not so much the overall poor sleep quality that was associated with greater risk, but rather the length of time it takes a person to fall asleep that takes the highest toll. Women who reported taking a half hour or more to fall asleep showed the worst risk profile," Suarez said.

He suggested the sleep/health risk differences between men and women may be partly due to variations in the activity of the number of naturally occurring substances in the body, such as the amino acid tryptophan, the neurotransmitter serotonin, and the neurohormone melatonin.

"All of these substances are known to affect mood, sleep, onset of sleep, inflammation and insulin resistance," said Suarez, who plans further research into the link between poor sleep and health risk in women and men.

More information

The U.S. National Institute of Neurological Disorders and Stroke has more about sleep.

-- Robert Preidt

SOURCE: Duke University, news release, March 10, 2008

Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Molecular biology of sleep apnea could lead to new treatments
2. Sleep deprivation used to diagnose sleepwalking
3. Scientists successfully awaken sleeping stem cells
4. Starved for Sleep? Watch Your Waistline
5. Surgery Only Works for Some Kids with Sleep Apnea
6. CMS Approves Home Sleep Testing for Diagnosis of OSA; AASM Experts Available for Comment
7. Poor sleep more dangerous for women
8. Physicians Say They Need More Sleep
9. Dallas Dentist Trains Navy Dentists on New Therapy to Treat Snoring and Obstructive Sleep Apnea
10. Sleep Medicine Associates Opens New Doors at Swedish - Cherry Hill Campus
11. Select Comfort Helps Families Sleep Better in Los Angeles
Post Your Comments:
Related Image:
Lack of Sleep Hurts Women's Hearts Most
(Date:11/27/2015)... ... November 27, 2015 , ... ... convenient way to dispense prescription medications at home, so he invented the patent-pending ... monitor and dispense prescription medications. In doing so, it could help to prevent ...
(Date:11/27/2015)... ... , ... MPWH, the No.1 Herpes-only dating community in the world, revealed that over 50% of ... than 3.7 billion people under the age of 50 – or 67% of the population ... global estimates of HSV-1 infection . , "The data shocks us highly!" said Michelle ...
(Date:11/27/2015)... ... November 27, 2015 , ... ... online platform for mental health and wellness consultation, has collaborated with a leading ... bridge the knowledge gap experienced by parents and bring advice from parenting experts ...
(Date:11/27/2015)... ... November 27, 2015 , ... Indosoft ... announces the incorporation of Asterisk 11 LTS (Long Term Support) into its Q-Suite ... LTS brings Q-Suite 5.10 up-to-date with a version of Asterisk that will receive ...
(Date:11/26/2015)... ... 2015 , ... The Catalent Applied Drug Delivery Institute today ... dose form selection in early phase drug development. The first of these is ... together the UK’s emerging life sciences companies, corporate partners, and investors, at Milton ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... 2015 Research and Markets ( ) has ... Market Outlook to 2019 - Rise in Cardiac Disorders and ... report to their offering. Boston ... scientific and others. --> The ... Boston scientific and others. ...
(Date:11/26/2015)... -- Research and Markets ( ) has ... Horizons and Growth Strategies in the Japanese Therapeutic ... Forecasts, Competitive Intelligence, Emerging Opportunities" report to ... --> This new 247-page report provides ... monitoring market, including emerging tests, technologies, instrumentation, sales ...
(Date:11/26/2015)... DUBLIN , November 26, 2015 ... has announced the addition of the  ... in the Global Cell Surface Testing ... Opportunities" report to their offering.  ... the addition of the  "2016 Future ...
Breaking Medicine Technology: