Students in schools that start late are less sleepy in the daytimeJune 10th, 2008 - 12:28 pm ICT by ANI
Washington, June 10 (ANI): A new study has shown that high school students with a delayed school start time are more likely to sleep longer, and less likely to feel sleepy during daytime.
Authored by Zaw W. Htwe, MD, of Norwalk Hospitals Sleep Disorders Center in Norwalk, Conn., the study focused on 259 high school students who completed the condensed School Sleep Habits Questionnaire.
Before the delay, students reported sleeping a mean of 422 minutes (7.03 hours) per school night, with a mean bed-time of 10:52 p.m. and a mean wake-up time as 6:12 a.m.
The study showed that after a 40-minute delay in the school start time from 7:35 a.m. to 8:15 a.m., students slept significantly longer on school nights.
Researchers found that total sleep time on school nights increased 33 minutes, which was due mainly to a later rise time. These changes were consistent across all age groups.
Students bedtime on school nights was marginally later, and weekend night sleep time decreased slightly.
More students reported no problem with sleepiness after the schedule change.
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, said Mary B. O’Malley, MD, PhD, corresponding author of the study.
It is recommended that teens get nine hours of nightly sleep.
The study has been presented at SLEEP 2008, the 22nd Annual Meeting of the Associated Professional Sleep Societies (APSS). (ANI)
- Sleep problems may cause kids to become aggressive - Jun 01, 2011
- Tart cherry juice drinkers sleep better - Dec 09, 2011
- Video game before bedtime 'has mild effect on adolescent sleep' - Apr 15, 2010
- Boozing aggravates sleeping problems more in women than men - Feb 16, 2011
- Sleep problems raise risk of motor vehicle accidents in adolescents - Feb 15, 2010
- Exposure to room light before bedtime may impact sleep quality, BP - Jan 13, 2011
- Naps between drives cut drowsiness level - Apr 20, 2011
- Delayed school start time linked to improved adolescent behaviours - Jul 06, 2010
- Sleepy adolescents prone to accidents - Feb 15, 2010
- Alcohol may be depriving you of sleep - Aug 16, 2011
- In spring, extended daylight disrupts teens' sleep patterns - Jul 27, 2010
- Maryland governor invites Indian investments - Nov 28, 2011
- How to give your baby a good night sleep - Aug 14, 2010
- Maryland governor in US celebrates Vaisakhi - Apr 28, 2012
- Highly variable sleep schedules predict elevated suicide risk - Jun 08, 2010
Tags: age groups, annual meeting, bed time, bedtime, conn, extra time, high school students, hospitals, minute delay, norwalk, o malley, professional sleep societies, questionnaire, rise time, sleep, sleep disorders, sleep disorders center, sleep time, sleepiness, wake up time