Featured Research

from universities, journals, and other organizations

Delaying School Start Time By One Hour Positively Affects Adolescents' Cognitive Performance

Date:
June 13, 2008
Source:
American Academy of Sleep Medicine
Summary:
Delaying an adolescent's school start time by one hour has a positive effect on his or her cognitive performance.

Delaying an adolescent's school start time by one hour has a positive effect on his or her cognitive performance, according to a research abstract that will be presented on June 12 at SLEEP 2008, the 22nd Annual Meeting of the Associated Professional Sleep Societies (APSS).

The study, authored by Orna Tzischinsky, PhD, of Emek Yezreel College in Israel, focused on 47 eighth graders from two classes, who were divided into experimental and control groups for a two-week period. On week one, the experimental class began their school day one hour later than usual (at 8:30 a.m.), while the control class began at the regular time (7:30 a.m.). On week two, both classes began at 7:30 a.m. The subjects were asked to maintain their habitual sleep-wake pattern. Actigraphs were worn to monitor sleep-wake patterns. On the fifth day of each week, the students performed a cognitive test.

According to the results, during the first week, the experimental class woke up 51 minutes later on average than the control class, while during the second week, the experimental and the control class woke up at the same time. Bedtime and sleep efficiency remained the same during both weeks.

"The cognitive tests showed better performance with the experimental group in comparison to the control group on the first week," said Dr. Tzischinsky. "The results demonstrate that longer sleep duration positively affects cognitive functioning."

It is recommended that adolescents get nine hours of nightly sleep.


Story Source:

The above story is based on materials provided by American Academy of Sleep Medicine. Note: Materials may be edited for content and length.


Cite This Page:

American Academy of Sleep Medicine. "Delaying School Start Time By One Hour Positively Affects Adolescents' Cognitive Performance." ScienceDaily. ScienceDaily, 13 June 2008. <www.sciencedaily.com/releases/2008/06/080612070445.htm>.
American Academy of Sleep Medicine. (2008, June 13). Delaying School Start Time By One Hour Positively Affects Adolescents' Cognitive Performance. ScienceDaily. Retrieved September 18, 2014 from www.sciencedaily.com/releases/2008/06/080612070445.htm
American Academy of Sleep Medicine. "Delaying School Start Time By One Hour Positively Affects Adolescents' Cognitive Performance." ScienceDaily. www.sciencedaily.com/releases/2008/06/080612070445.htm (accessed September 18, 2014).

Share This



More Health & Medicine News

Thursday, September 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Artificial Sweetener Could Promote Diabetes

Artificial Sweetener Could Promote Diabetes

Newsy (Sep. 17, 2014) Doctors once thought artificial sweeteners lacked the health risks of sugar, but a new study says they can impact blood sugar levels the same way. Video provided by Newsy
Powered by NewsLook.com
Ebola Vaccine Trial Gets Underway at Oxford University

Ebola Vaccine Trial Gets Underway at Oxford University

AFP (Sep. 17, 2014) A healthy British volunteer is to become the first person to receive a new vaccine for the Ebola virus after US President Barack Obama called for action against the epidemic and warned it was "spiralling out of control." Duration: 01:02 Video provided by AFP
Powered by NewsLook.com
Obesity Rates Steady Even As Americans' Waistlines Expand

Obesity Rates Steady Even As Americans' Waistlines Expand

Newsy (Sep. 17, 2014) Researchers are puzzled as to why obesity rates remain relatively stable as average waistlines continue to expand. Video provided by Newsy
Powered by NewsLook.com
President To Send 3,000 Military Personnel To Fight Ebola

President To Send 3,000 Military Personnel To Fight Ebola

Newsy (Sep. 16, 2014) President Obama is expected to send 3,000 troops to West Africa as part of the effort to contain Ebola's spread. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins