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CLEVELAND --- The American Academy of Pediatrics is urging middle schools and high schools to start school later in the day. Teens' biological clocks often make it tough to wake up and tough to focus in school.

The AAP recommends that middle and high schools start at 8:30 a.m. or later so teenagers can better adapt to biological changes to their sleep patterns.

The National Association of Social Workers Ohio Chapter has endorsed the later start times as well.

"This chronic sleep deprivation in adolescents impairs their ability to concentrate, solve problems, and retain information--leading to lower academic performance," they said.

Critics say this would impact bus transportation and parent work schedules.

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