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:4/26/2015)... Italian public health researchers have released new data ... and other asbestos-related industries. Surviving Mesothelioma has just posted ... to read it now. , University researchers ... Medicine analyzed more than 15,000 cases of mesothelioma between ... asbestos cancer was most common. , “Asbestos cement ...
(Date:4/26/2015)... (PRWEB) April 26, 2015 From March ... and his wife, Trivedi Master™ Dahryn Trivedi, spent a ... approved research laboratories and institutions in the efforts of ... medicine and nutraceutical supplements for human health care. ... different research labs and institutions. All lab facilities are ...
(Date:4/26/2015)... Rosa, CA (PRWEB) April 26, 2015 In ... from Washington State University evaluated the head-neck biomechanics occurring during ... of the study were able to determine that use of ... much as 3 to 5 times - more than when ... surprising outcome for such a study, but pointing out the ...
(Date:4/25/2015)... April 26, 2015 The National ... , a national endeavor to prepare nurses to provide ... a great success, according to a new report by ... original funding partners. , The project began in ... (CCP), under the direction of Elaine Tagliareni, EdD, RN, ...
(Date:4/25/2015)... The Hon. Ellen Tauscher, Independent Chair of the ... following the deadly earthquake in Nepal: , "Today a ... deaths of more than 1,000 people. The aftershocks ... India and other parts of South Asia. I ... of Nepal and the families of the victims. ...
Breaking Medicine News(10 mins):Health News:New Investigation Finds Mesothelioma “Clusters” Around Italian Cement Plants, According to Surviving Mesothelioma 2Health News:Trivedi Science™ Has Started Scientific Research to Create More Effective Pharmaceuticals and Nutraceuticals 2Health News:Trivedi Science™ Has Started Scientific Research to Create More Effective Pharmaceuticals and Nutraceuticals 3Health News:Avoiding the Pain in the Neck Caused by Overuse of Technology 2Health News:Avoiding the Pain in the Neck Caused by Overuse of Technology 3Health News:Avoiding the Pain in the Neck Caused by Overuse of Technology 4Health News:Hartford Foundation Report Details Success of NLN's Advancing Care Excellence for Seniors (ACE.S) Program 2Health News:Hartford Foundation Report Details Success of NLN's Advancing Care Excellence for Seniors (ACE.S) Program 3
(Date:4/24/2015)...  Perrigo Company plc ("Perrigo" or the "Company") (NYSE: ... offer from Mylan NV ("Mylan") (NASDAQ: MYL ) ... for $60.00 per share in cash and 2.2 Mylan ... The Board previously concluded that Mylan,s ... Company and its future growth prospects and was not ...
(Date:4/24/2015)... , April 24, 2015  IGI Laboratories, Inc. (NYSE ... based specialty generic pharmaceutical company, announced the Company will ... Tuesday, April 28, 2015 to discuss the 1st quarter ... listen to the call by dialing 1-888-346-3479. International participants ... should ask to be joined into the IGI Laboratories, ...
(Date:4/24/2015)...  Span-America Medical Systems, Inc. (NASDAQ:  SPAN) announced ... second quarter results on Thursday, April 30, after the ... will conduct a conference call at 10:00 a.m. ... financial and operating results for the second quarter ended ... conference call will be available online at ...
Breaking Medicine Technology:Perrigo Rejects Mylan Unsolicited Offer 2Perrigo Rejects Mylan Unsolicited Offer 3Perrigo Rejects Mylan Unsolicited Offer 4
Cached News: