Sunday, January 25, 2015
YOLO COUNTY NEWS
99 CENTS

Sleep essential in right amount, loss can be recouped

By
From page A7 | October 20, 2013 |

By Lee Bowman

The return to standard time for most of the country won’t come for a few more weeks, leaving many looking forward to the Nov. 3 “fall back” that rewards us the option of an extra hour’s sleep.

But even as shorter days make us want to hibernate, sleep scientists have been churning out several new studies that underscore just how important — and difficult — it can be to get a decent amount of shuteye.

Although it’s clear that sleep is important in preserving mental function, and restoring and growing everything from the immune and nerve systems to bones and muscle, researchers remain uncertain about just how much sleep debt we build up over time and how much can be done to recover that lost sleep with extra snooze time down the road.

First, a team from the Penn State University College of Medicine and several other institutions took a look at catch-up sleep — typically sleeping in on weekends after a workweek of reduced sleep. The study appeared Oct. 9 in the American Journal of Physiology-Endocrinology and Metabolism.

They put 30 healthy volunteers on a sleep-lab schedule that mimicked a sleep-restricted workweek, followed by a weekend with extra recovery sleep. And they found that the volunteers’ sleepiness, which had increased during the week, did go back to baseline levels after getting the recovery sleep.

And blood tests showed that inflammation that increased during sleep restriction, and a hormone that is a marker for stress both went down after the recovery sleep. However, results from a test that assessed volunteers’ ability to pay attention declined during the work-week period and did not improve after the catch-up sleep, suggesting that not all the effects of sleep lost during a workweek can be made up over a single weekend, the researchers said.

They also stressed that while the study gives some insight into a weekly cycle, it does not address possibly more significant health effects brought about by sleep loss over a longer time frame.

Another study of sleep patterns in adults 45 and older found that sleeping too little (less than six hours a night) or getting too much sleep (10 hours or more) both are linked with chronic diseases such as heart disease, obesity and diabetes.

The report by researchers at the Centers for Disease Control and Prevention appeared Oct. 1 in the journal Sleep. Short sleepers, who made up about 31 percent of the participants, reported a higher incidence of the chronic diseases, as well as mental stress, compared to optimal sleepers who made up 64 percent of the study group and who got an average of 7 to 9 hours sleep per each 24 hour period.

Similar effects, but even more pronounced, were found in the long-sleepers who made up just 4 percent of the study group.

The study included 54,000 people from 14 states.

A third report, published last year by scientists at the University of Pittsburgh, shows that the sleep habits of the elderly, once thought to be much shorter and with earlier bedtimes, are actually much the same.

Based on telephone interviews with nearly 1,200 retired people over the age of 65 and living in western Pennsylvania, the researchers found that three quarters of them said they slept an average of more than 6.75 hours a night, and most of them slept between the hours of 11 p.m. and 7:30 a.m.

Only about 25 percent said they slept less than 6.7 hours a night, had difficulty sleeping at night and experienced problems with daytime sleepiness. Among that group, interviews showed the sleep problems were more likely to be tied to illness or medicines the seniors were taking than old age.

The study was published in the journal Healthy Aging and Clinical Care in the Elderly.

— Contact Scripps health and science writer Lee Bowman at BowmanL@shns.com. Distributed by Scripps Howard News Service, www.shns.com

Comments

comments

Scripps Howard News Service

.

News

Four days of unusual, adventuresome music

By Jeff Hudson | From Page: A1 | Gallery

 
Bridges of Yolo County: Wear, tear … repair?

By Elizabeth Case | From Page: A1 | Gallery

 
Spanish police arrest 4 suspected members of a jihadi cell

By The Associated Press | From Page: A2

Rockets kill 30 in Ukrainian city as rebels launch offensive

By The Associated Press | From Page: A2

 
Abe ‘speechless’ after video claims IS hostage dead

By The Associated Press | From Page: A2

GOP presses state bills limiting gay rights before ruling

By The Associated Press | From Page: A2

 
Abortion opponents express renewed hope at California rally

By The Associated Press | From Page: A2

Fake schools draw federal scrutiny

By The Associated Press | From Page: A3 | Gallery

 
Winter produce available at Sutter market

By Special to The Enterprise | From Page: A3

Vote for your favorites in Readers’ Choice poll

By Enterprise staff | From Page: A3

 
Share your love (story) with us

By Enterprise staff | From Page: A3

 
Sip wines at St. James’ annual tasting

By Special to The Enterprise | From Page: A3

Speaker will share computer security tips

By Enterprise staff | From Page: A4

 
Logos Books celebrates 5 years, offers language groups

By Enterprise staff | From Page: A4

Australian olive oil company opens U.S. headquarters in Woodland

By Special to The Enterprise | From Page: A4

 
Explore at the YOLO Outdoor Expo

By Enterprise staff | From Page: A4

Pedal around Davis on weekly bike ride

By Enterprise staff | From Page: A4

 
Donations to be distributed during homeless count

By Anne Ternus-Bellamy | From Page: A4

 
Yolo animal shelter seeking rawhide donations

By Lauren Keene | From Page: A5

Woodland Healthcare employees take Great Kindness Challenge

By Special to The Enterprise | From Page: A5

 
At the Pond: Nest boxes give birds new homes

By Jean Jackman | From Page: A6 | Gallery

California ranks worst in nation for guidance counselors

By The Associated Press | From Page: A7

 
Davis, Woodland are saving water

By Elizabeth Case | From Page: A12

Words and Music Festival events

By Jeff Hudson | From Page: A12

 
.

Forum

Family isn’t keen on relationship

By Creators Syndicate | From Page: A8

 
 
Caring for the aging mouth

By Samer Alassaad | From Page: A8

We don’t have to suffer

By Letters to the Editor | From Page: A10

 
City helped immensely

By Letters to the Editor | From Page: A10

Rick McKee cartoon

By Debbie Davis | From Page: A10

 
Big utilities’ nightmare begins to play out

By Tom Elias | From Page: A10

Mayor’s Corner: Let’s renew Davis together

By Dan Wolk | From Page: A10

 
We have the right to choose

By Letters to the Editor | From Page: A10

When measles spreads from Disneyland, it’s a small world after all

By New York Times News Service | From Page: A11

 
From innovation parks to innovative buildings and planning

By Special to The Enterprise | From Page: A11

.

Sports

Loud crowd sees DHS boys win

By Spencer Ault | From Page: B1 | Gallery

 
Lady Devils hold off Pacers, stay perfect in league

By Enterprise staff | From Page: B1

Wildcats’ inaugural kids development league exceeds expectations

By Bruce Gallaudet | From Page: B1 | Gallery

 
Aggies get top 2015 gymnastics score, but fall short

By Bruce Gallaudet | From Page: B1 | Gallery

UCD men take two tennis matches

By Enterprise staff | From Page: B8

 
Watney in ninth at Humana Challenge

By Staff and wire reports | From Page: B8

.

Features

.

Arts

.

Business

Davis man focusing on cannabidiol business

By Will Bellamy | From Page: A9

 
Marrone Bio’s Regalia approved for new uses in Canada

By Special to The Enterprise | From Page: A9

 
UCD grad makes insurance ‘hot 100′ list

By Enterprise staff | From Page: A9

Yolo County real estate sales

By Zoe Juanitas | From Page: A9

 
.

Obituaries

.

Comics

Comics: Sunday, January 25, 2015

By Creator | From Page: B8