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:


(Date:5/2/2016)... ... ... Pets bring laughter, joy and love into people’s homes without asking for much ... falls on the first full week of May. These seven days, May 1 to ... responsible pet ownership. Pet owners can live out these values by following action items ...
(Date:5/2/2016)... ... , ... Eating Recovery Center’s Insight Behavioral Health Center (ERC Insight) , ... its eating disorder program under a new name: Eating Recovery Center, Chicago (ERC Chicago). ... , To celebrate, ERC Chicago will host a ribbon-cutting ceremony and open house ...
(Date:5/2/2016)... ... May 02, 2016 , ... In honor of National Physical Fitness ... to people who share their fitness journey on social media. , The foot ... will award a $100 product voucher each week during May to one winner. , ...
(Date:5/2/2016)... Agoura Hills, CA (PRWEB) , ... May 02, 2016 , ... ... technology to provide his patients with same day treatments. In the past, many necessary ... from school or work, along with multiple anesthetic shots and extra chair time. Not ...
(Date:5/2/2016)... ... 02, 2016 , ... MedPro Waste Disposal, LLC (MedPro) is proud to announce ... its mail back service for an all-inclusive rate. MedPro Disposal President, Dan Hansen, says, ... to all of the clients in the country who are looking for an alternative ...
Breaking Medicine News(10 mins):
(Date:4/27/2016)... 27, 2016 ... in Zürich gab Strekin AG den Start ... zur Erhaltung des Resthörvermögens von Patienten, denen ... die umfassende Phase-II-Doppelblindstudie mit Placebo-Kontrollgruppe werden momentan ... wird während der Operation direkt ins Mittelohr ...
(Date:4/27/2016)... , April 27, 2016 Elekta ... (MR-linac) platform will be the focal point of seven ... the European Society for Radiotherapy & Oncology, taking place ... integrates a state-of-the-art radiotherapy system and a high-field MRI ... clearly see the patient,s anatomy in real time. The ...
(Date:4/27/2016)... Tie-up with Government hospitals as ... to save newborns   Fortis La Femme, ... collaboration with Breast Milk Foundation (BMF), a non-profit organization within ... Bank, ,Amaara, in Delhi-NCR today. This non-profit centre recognizes that ... and should be available to babies deprived of mother,s milk.  ...
Breaking Medicine Technology:
Cached News: