Featured Research

from universities, journals, and other organizations

Sleep problems may increase risk for prostate cancer

Date:
May 7, 2013
Source:
American Association for Cancer Research
Summary:
Problems falling asleep and staying asleep increased the risk for prostate cancer. The association was stronger for advanced disease. Larger studies with longer follow-up are necessary for confirmation.

Men who reported sleep problems, including difficulty falling asleep and staying asleep, had up to a twofold increased risk for prostate cancer, according to data published in Cancer Epidemiology, Biomarkers & Prevention, a journal of the American Association for Cancer Research.

"Sleep problems are very common in modern society and can have adverse health consequences," said Lara G. Sigurdardóttir, M.D., at the University of Iceland in Reykjavik. "Women with sleep disruption have consistently been reported to be at an increased risk for breast cancer, but less is known about the potential role of sleep problems in prostate cancer."

Previous studies have generated conflicting results for an association between sleep disruption from working night shifts and the risk for prostate cancer. Sigurdardóttir and her colleagues, therefore, investigated the role of sleep in influencing prostate cancer risk.

The researchers followed 2,102 men from the prospective Age, Gene/Environment Susceptibility-Reykjavik study, which involved an established, population-based cohort of 2,425 men aged 67 to 96. Upon enrollment into the study, the participants answered four questions about sleep disruption: whether they took medications to sleep, had trouble falling asleep, woke up during nights with difficulty going back to sleep or woke up early in the morning with difficulty going back to sleep.

Among the participants, 8.7 percent and 5.7 percent reported severe and very severe sleep problems, respectively. None of the participants had prostate cancer at study entry. The researchers followed the participants for five years, and during this period, 6.4 percent were diagnosed with prostate cancer.

After the researchers adjusted for age, they found that compared with men who reported no problems with sleeping, the risk for prostate cancer increased proportionately with reported severity of problems falling and staying asleep, from 1.6-fold to 2.1-fold. Further, the association was stronger for advanced prostate cancer than for overall prostate cancer, with more than a threefold increase in risk for advanced prostate cancer associated with "very severe" sleep problems.

To rule out the possibility that the problems with sleeping were because of undiagnosed prostate cancer or an enlarged prostate, the researchers reanalyzed the data after excluding men with symptoms of sleep disturbance that might be indicative of nocturia (waking up during the night to urinate). The results remained unchanged.

According to Sigurdardóttir, these data should be confirmed with a larger cohort with longer observation times. "Prostate cancer is one of the leading public health concerns for men and sleep problems are quite common," she said. "If our results are confirmed with further studies, sleep may become a potential target for intervention to reduce the risk for prostate cancer."


Story Source:

The above story is based on materials provided by American Association for Cancer Research. Note: Materials may be edited for content and length.


Cite This Page:

American Association for Cancer Research. "Sleep problems may increase risk for prostate cancer." ScienceDaily. ScienceDaily, 7 May 2013. <www.sciencedaily.com/releases/2013/05/130507061137.htm>.
American Association for Cancer Research. (2013, May 7). Sleep problems may increase risk for prostate cancer. ScienceDaily. Retrieved September 2, 2014 from www.sciencedaily.com/releases/2013/05/130507061137.htm
American Association for Cancer Research. "Sleep problems may increase risk for prostate cancer." ScienceDaily. www.sciencedaily.com/releases/2013/05/130507061137.htm (accessed September 2, 2014).

Share This




More Health & Medicine News

Tuesday, September 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

U.N. Says Ebola Travel Restrictions Will Cause Food Shortage

U.N. Says Ebola Travel Restrictions Will Cause Food Shortage

Newsy (Sep. 2, 2014) — The U.N. says the problem is two-fold — quarantine zones and travel restrictions are limiting the movement of both people and food. Video provided by Newsy
Powered by NewsLook.com
Get on Your Bike! London Cycling Popularity Soars Despite Danger

Get on Your Bike! London Cycling Popularity Soars Despite Danger

AFP (Sep. 1, 2014) — Wedged between buses, lorries and cars, cycling in London isn't for the faint hearted. Nevertheless the number of people choosing to bike in the British capital has doubled over the past 15 years. Duration: 02:27 Video provided by AFP
Powered by NewsLook.com
Can You Train Your Brain To Eat Healthy?

Can You Train Your Brain To Eat Healthy?

Newsy (Sep. 1, 2014) — New research says if you condition yourself to eat healthy foods, eventually you'll crave them instead of junk food. Video provided by Newsy
Powered by NewsLook.com
We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) — A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins