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Extra sleep may improve kids' conduct
NEW YORK (Reuters Health) -
Letting kids sleep a little longer may help improve their behavior and make
them less restless in school, according to a new study.
On the
flip side, cutting back on kids' time asleep seems to make them more likely to
cry, lose their temper and become frustrated, according to the researchers, who
published their findings in the journal Pediatrics on Monday.
"You
can think about it from a lot of different angles. What we are showing here is
that it can go both ways in terms of behavior and academic performance,"
said Reut Gruber,
of Montreal's McGill University and Douglas Research Center, who led the study. World Hot Topics Blog
While Gruber's team is not the first to link
sleep and behavior, few studies have looked at whether more sleep actually
leads to better behavior in school children.
For the study, they recruited 33 children
between seven and 11 years old to be followed over two weeks.
For the
first week, the researchers monitored how long the kids slept - about 9.3
hours, which is short of the 10 hours suggested by the U.S. National Institutes of Health.
The children were then split into two groups
for the second week.
One group's parents were told to add an hour
to their kids' usual time asleep, while the other group was told to cut their
kids' sleep by an hour.
Half of the children did lose an hour of
sleep each night, but the other group was only able to add about 30 minutes.
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Still, that half hour seemed long enough for
teachers to notice an improvement in the kids' behavior.
After the first week of monitoring, the
teachers answered questions that rated the children's emotions, moodiness and
restlessness at school on a scale from zero to 100, with higher scores indicating
worse behavior and scores above 60 signaling a behavioral problem.
The baseline score for both groups of kids
before the sleep manipulation began was about 50.
After a week of the experimental sleep
changes, teachers - who did not know which group any of the children were in -
rated the kids again.
The children who got that extra 30 minutes of
sleep during the second week scored, on average, about 47, meaning their
behavior had improved.
Meanwhile, teachers rated the kids who lost
an hour of sleep each night at about 54, indicating their behavior had gotten
worse.
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Neither of those changes signals an extreme
difference in the children's behaviors, said Gruber. But, she added, it would
be enough of a difference to make the teachers notice.
Unsurprisingly,
the parents of those who got an extra 30 minutes of sleep also said their
children weren't as tired throughout the day, while the opposite was true for
parents in the other group.
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"The thing that was surprising was how
little sleep extension could affect functioning on a day-to-day basis,"
said Dr. Umakanth Khatwa, sleep lab director at Boston Children's Hospital in
Massachusetts, who was not involved with the new study.
Gruber told Reuters Health that while the
study only included 33 kids, it was still able to show more sleep leads to
better behavior.
However, the researchers do write that not
all of the study's participants were blinded as to which children lost or
gained an hour of sleep, because the parents had to be in the know. That may
have influenced the parents' reporting of sleepiness throughout the day, they
say.
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Gruber said that it can be hard for parents
to add time to their kids' sleep schedule, but she said one of the keys is to
eliminate interferences, such as late-night sports practice.
Khatwa agreed. "A lot of practices are
going into evening now… And by the time you're done, your body is riled up and
you need time to wind down," he said.
Gruber said one way to add the extra sleep
could be to add 15 extra minutes of sleep at night and in the morning.
"Once it becomes a routine, the children
won't really care about it," she said.
But Khatwa said it's also important for
parents to know their children's specific sleep needs.
"I don't want parents to take this and
force their kids to sleep longer… Parents need to have realistic
expectations," he added. "You need to let them sleep long enough so
they can function normally."
Gruber
said that it's important for schools to educate children that getting enough
sleep is just as important as eating right and getting enough exercise.
This World Hot Topics Blog is Originally from here :
Extra sleep may improve kids' conduct
http://news.yahoo.com/extra-sleep-may-improve-kids-conduct-191800906.html
