HOME >> MEDICINE >> NEWS
New study shows people sleep even less than they think

A study of the sleep characteristics of 669 middle-aged adults found that people sleep much less than they should, and even less than they think. Published in the July issue in the American Journal of Epidemiology, the study also found that blacks sleep less than whites, men sleep less than women, and the poor sleep less than the wealthy.

Although participants spent an average of 7.5 hour a night in bed, they spent only 6.1 hours asleep. White women slept the most, 6.7 hours a night, followed by white men at 6.1 hours, black women at 5.9 hours and black men at 5.1 hours. Higher income also was associated with more sleep.

"People don't think they get enough sleep and they get less sleep than they think," said study author Diane Lauderdale, Ph.D., associate professor of health studies at the University of Chicago. "As we learn more and more about the importance of sleep for health, we find evidence that people seem to be sleeping less and less."

Studies suggest that average sleep times have declined since 1900, when people reported sleeping nine hours a night. Studies from the 1970s reported average sleep times closer to seven hours a night.

"Our study tells that we can't entirely trust those earlier surveys," Lauderdale said, "because people do not know how much they sleep."

This was one of the first large studies to combine sleep diaries with a technique called wrist actigraphy that uses a motion sensor -- worn like a watch -- to measure not just when people go to bed but when they fall asleep. Participants wore the device in the home for three days and nights. They also kept a log of their hours in bed.

Using the Actiwatch and nightly logs, Lauderdale and colleagues recorded how long people spent in bed (on average, 7.5 hours), how long it took them to fall asleep (22 minutes), how long they slept (6.1 hours), and their total sleep "efficiency" -- time asleep divided by tim
'"/>

Contact: John Easton
John.Easton@uchospitals.edu
773-702-6241
University of Chicago Medical Center
3-Jul-2006


Page: 1 2 3

Related medicine news :

1. Childhood obesity indicates greater risk of school absenteeism, Penn study reveals
2. Penn study finds pro-death proteins required to regulate healthy immune function
3. New study shows promise in reducing surgical risks associated with surgical bleeding
4. New study counts the economic cost of persistent pain in Australia
5. UCLA researchers awarded $9M contract for study identifiying antibiotic treatment for MRSA
6. Most seniors now have drug coverage, U-M study shows
7. To gain muscle and lose fat, drink milk: study
8. Wheres the beef? Not enough of it is on elders plates, muscle-metabolism study suggests
9. Even older women at high risk have little interest in being tested for HIV, study finds
10. Metabolic study in mice could lead to good cholesterol boosters
11. Michigan-CDC study supports value of social restrictions during influenza pandemics

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: New study shows people sleep even less than they think

(Date:11/24/2014)... (PRWEB) November 24, 2014 Recently, SweetDressy.com, ... industry, unveiled its new collection of 2014 Evening Dresses. ... now. According to the company’s marketing manager, the special ... http://www.sweetdressy.com/evening-dresses.html for more. , Sweetdressy.com has been working ... pleased to unveil the latest designs. Their new dresses ...
(Date:11/24/2014)... New York (PRWEB) November 24, 2014 ... contacted by the Family and Children's Association ... such as soap, shampoo, mouthwash and other such items.The ... citizens who are home bound, living in nursing homes, ... intended to greatly enhance the well being of seniors ...
(Date:11/24/2014)... SWAccessControl.com has recently released a new ... fact, the company is a leading online supplier in the ... are available at discounted prices, up to 30% off. , ... locks. This time, all of our items are offered at ... abroad, so I have confidence in our fresh assortment. You ...
(Date:11/24/2014)... Mental health issues affect tens ... up families, ruin careers, and generally destroy lives. ... that suffer,” says Hardy Nutritionals® founder ... our specialized nutritional treatments can reverse these disorders ... Over Matter”, the premiere episode of O2 Media’s ...
(Date:11/24/2014)... TX (PRWEB) November 24, 2014 The ... all of the wrong ingredients. Consistently consuming a diet ... to develop stores of excess fat that typically accumulate ... problems and rearing its ugly head in the form ... , When dieters make the decision to rid themselves ...
Breaking Medicine News(10 mins):Health News:SweetDressy.com Unveiled A New Selection Of Evening Dresses 2Health News:The Holiday Inn Westbury - Long Island gives back to the local Long Island community, and also goes beyond borders to assist those in need during the 2014 Holiday Season 2Health News:The Holiday Inn Westbury - Long Island gives back to the local Long Island community, and also goes beyond borders to assist those in need during the 2014 Holiday Season 3Health News:SWAccessControl.com Is Happy To Release New Range Of Magnetic Locks 2Health News:Nutritional Mental Health Treatment Featured on Access Health Airing on Lifetime Television® 2Health News:Nutritional Mental Health Treatment Featured on Access Health Airing on Lifetime Television® 3Health News:Ketogenic Diet is the Perfect Solution for Diet Doc Patients Who Want to Learn How to Lose Weight over the Holidays 2Health News:Ketogenic Diet is the Perfect Solution for Diet Doc Patients Who Want to Learn How to Lose Weight over the Holidays 3Health News:Ketogenic Diet is the Perfect Solution for Diet Doc Patients Who Want to Learn How to Lose Weight over the Holidays 4
(Date:11/21/2014)... , Nov. 21, 2014  The University of Maryland,s ... the ceremonial groundbreaking of the new A. James Clark ... new building will cultivate transformative new engineering and biomedical ... Taking place at 10:00 a.m. on November 21 at ... Branch Parking Lot, adjacent to the Jeong H. Kim ...
(Date:11/21/2014)... , Nov. 21, 2014   Rock Creek ... that the Company is scheduled to present at the ... Francisco, CA on January 12-14, 2015. ... and CEO of Rock Creek Pharmaceuticals, will present preclinical ... cholinergic agonist which exhibits anti-inflammatory pharmacological characteristics. Dr. Mullan ...
(Date:11/21/2014)... 2014  PTC Therapeutics, Inc. (NASDAQ: PTCT ) ... Award for Vision, Innovation, and Leadership has been awarded to ... award recognizes an individual who has had a significant impact ... for several decades. "I am honored to ... Peltz , Ph.D., CEO of PTC Therapeutics, Inc. "When I ...
Breaking Medicine Technology:University of Maryland Breaks Ground for A. James Clark Hall 2University of Maryland Breaks Ground for A. James Clark Hall 3University of Maryland Breaks Ground for A. James Clark Hall 4Rock Creek Pharmaceuticals to Present at the Biotech Showcase 2015 2Rock Creek Pharmaceuticals to Present at the Biotech Showcase 2015 3Rock Creek Pharmaceuticals to Present at the Biotech Showcase 2015 4PTC Therapeutics Announces CEO, Dr. Stuart Peltz Recipient of The New Jersey Technology Council's 2014 Legend of Technology Award 2PTC Therapeutics Announces CEO, Dr. Stuart Peltz Recipient of The New Jersey Technology Council's 2014 Legend of Technology Award 3
Cached News: