Navigation Links
Teens Sleep Longer With Delayed School Starts
Date:6/12/2008

Most report less daytime sleepiness when opening bell is pushed back, study concludes

THURSDAY, June 12 (HealthDay News) -- Teens whose high schools have a delayed start time sleep longer and report less daytime sleepiness, say researchers at Norwalk Hospital's Sleep Disorders Center in Connecticut.

The study included 259 high school students who reported sleeping about 7.03 hours per school night, with a mean bed time of 10:52 p.m. and a mean wake-up time of 6:12 a.m. when school started at 7:35 a.m.

After the school start time was switched to 8:15 a.m., the students' total sleep time on school nights increased 33 minutes, mainly due to a later rise time. Their bedtime on school nights was slightly later, and there was a slight decrease in weekend sleep time. After the change in school start time, more students reported having no problem with daytime sleepiness.

"Following a 40-minute delay in start time, the students utilized 83 percent of the extra time for sleep. This increase in sleep time came as a result of being able to 'sleep in' to 6:53 a.m., with little delay in their reported school night bedtime. This study demonstrates that students given the opportunity to sleep longer, will, rather than extend their wake activities on school nights," study corresponding author Dr. Mary B. O'Malley said in a prepared statement.

The research was expected to be presented at the annual meeting of the Associated Professional Sleep Societies, in Baltimore.

In other study results expected to be presented at the meeting, researchers found that teens who don't get enough sleep suffer lower school grades and lack of motivation and are increased risk for serious emotional and behavioral problems.

The University of Kentucky study of 882 high school freshmen found that they slept an average of 7.6 hours per school night, with 48 percent reporting less than eight hours.

The researchers found a strong association between hours of sleep per school night and GPA, level of motivation, emotional disturbance and attention-deficit hyperactivity disorder (ADHD). Each additional hour of sleep on school nights reduced the risk of scoring in the clinically significant range of emotional disturbance and ADHD by 25 percent and 34 percent, respectively.

"Since these findings are based on associations rather than direct experimental manipulation, they cannot conclusively prove that insufficient sleep causes a loss of motivation, poor grades, ADHD and emotional disturbance during adolescence," study author Fred Danner said in a prepared statement.

"These results, however, are consistent with a growing body of research that many adolescents do not get sufficient sleep, and that even mild chronic sleep deprivation has serious effects on their psychological functioning. Lack of sleep should no longer be considered a traditional adolescent rite of passage, because it can have serious consequences," Danner said.

More information

The Nemours Foundation has more about teens and sleep.



-- Robert Preidt



SIURCE: American Academy of Sleep Medicine, news release, June 9, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Frequent self-cutting linked to risky sexual behavior in teens
2. Bipolar Teens at Greater Risk of Substance Abuse
3. Alcohol, Drug Counseling Benefits Teens, Too
4. New Program/Website Targets Jewish Children, Teens, and Adults Suffering from the Impact of Childhood Maltreatment
5. Survey: Parents Let Their Own Experiences Affect Drug and Alcohol Boundaries Set for Teens at Prom and Graduation Parties
6. Fitworks Fitness Centers Responds to the Growing Adolescent Obesity Rate by Offering Free Summer Memberships to Teens 13-15 Years of Age
7. Let Water Be Water, LLC, Launches WAT-AAH!(TM), First Premium Brand of Pure Water with Function Specially Targeted to Kids and Teens
8. Teens think they have asthma under control, but benefit from new approach to treatment
9. Overcoming Im in Control Syndrome and Providing Help When Patients Least Expect It Can Benefit Children and Teens With Asthma
10. Physical activity, healthy eating and BMI not linked in older teens: study
11. Heart Disease Risks Hit Boys in Teens
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/5/2016)... ... ... Chronic stress can have a silent, yet dangerous, impact on men’s heart ... increase inflammation, both of which raise the risk of heart attack and even stroke,” ... Harvard-affiliated Massachusetts General Hospital. Chronic stress also can lead to other issues that indirectly ...
(Date:5/5/2016)... Rochester, NY (PRWEB) , ... May 05, 2016 ... ... app is now available for iOS and Android devices. VisualDx is the ... expanded to include diagnostic support across general medicine. The system speeds diagnosis, ...
(Date:5/5/2016)... ... May 05, 2016 , ... CURE Media Group , ... announced a new collaboration with Imerman Angels to expand outreach and emotional ... world. , “Imerman Angels provides an emotional lifeline to patients and families facing the ...
(Date:5/5/2016)... (PRWEB) , ... May 05, 2016 , ... If you ... stretch marks on your skin, you may want to consider a treatment that some ... of Advanced Dermatology P.C. , Microneedling, also known as skin needling, is ...
(Date:5/5/2016)... Ill. (PRWEB) , ... May 05, 2016 , ... Dermatologic ... percent more than 2014 and up 27 percent since 2012. , The results of ... – including another annual increase in skin cancer treatments and the growing popularity of ...
Breaking Medicine News(10 mins):
(Date:5/5/2016)... -- Progra m m e ... , s mosquito in Cayman Islands ... by 96 %   Oxitec and the Cayman Islands ... Aedes aegypti, the dangerous mosquito that spreads dengue, Zika and chikungunya, ... Grand Cayman .  MRCU, a global leader in mosquito control, is planning ...
(Date:5/5/2016)... Research and Markets has announced the addition of ...  report to their offering.  ,     (Logo: http://photos.prnewswire.com/prnh/20160330/349511LOGO ... Emission Tomography (PET) scanner and cyclotron install base in ... the current known number of PET scanners and cyclotrons ... also contains a detailed breakdown of this equipment by ...
(Date:5/5/2016)... DUBLIN , May 5, 2016 ... Markets has announced the addition of the  ... Highlights - 2016"  report to their ... http://photos.prnewswire.com/prnh/20160330/349511LOGO ) , ,The latest ... Landscape Highlights - 2016, provides comprehensive ...
Breaking Medicine Technology: