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:7/28/2017)... ... July 28, 2017 , ... The United ... budget on nutrition assistance programs. , Right now the most public debate is ... changes to other programs are under consideration, including WIC (Women, Infants, and Children), ...
(Date:7/28/2017)... OR (PRWEB) , ... July 28, 2017 , ... Date ... http://www.GlobalDragonTV.com , Like millions of first generation immigrants before her, Rose Hong ... beneficiary of generosity and sacrifice on the part of loving parents who made sure ...
(Date:7/28/2017)... ... , ... As many parents, students, and teachers are getting ready to focus ... and address mental fatigue that can accompany long study hours, homework sessions, and grading ... only helps with school work but also in day-to-day functions on the job and ...
(Date:7/28/2017)... ... ... For over 20 years Sealy Baby has been creating crib mattresses that help ... in using some of nature’s best materials while integrating today’s latest comfort technologies to ... and crib bedding for infants and toddlers. We are thrilled that ...
(Date:7/28/2017)... ... July 28, 2017 , ... ... financial planning assistance to families and business owners in and around the greater ... held in honor of the Make-A-Wish Foundation. , The Make-A-Wish Foundation is an ...
Breaking Medicine News(10 mins):
(Date:7/28/2017)... 2017 EnvoyHealth, a Diplomat company, has partnered with ... CleverCap LITE, a technology designed to improve patient medication ... health technology solutions and services that help track and ... CleverCap LITE offers medication monitoring and control for ... Records date and time ...
(Date:7/26/2017)... a leading medical aesthetic clinic in Singapore ... conditions from the inside. The natural process of aging ... becomes more transparent due to the thinning of the epidermis. Over the ... sun contributes to aging skin, causing age spots and other types ... ...
(Date:7/25/2017)... Foundation: Curing Stomach Cancer (DDF) is excited to host its 3 rd ... & Spa in Weston, Florida beginning at 10:30 a.m.   ... Luncheon Committee Co-chair and DDF ... Co-chair Sabrina Kurzman. ... Aura Morales-Guzman, Angela Perez, DDF Board Member John Nash (of ...
Breaking Medicine Technology:
Cached News: