HEALTHY LIVING

The Science-Backed Reason Schools Should Start Later

02/08/2015 10:08 am ET | Updated Feb 13, 2015

Only 3.8 percent of public high schools in the United States start at 9 a.m. or later -- particularly troubling for the teens who learn there, who can barely manage seven of hours of sleep each night.

Students themselves have joined the debate surrounding later start times, but school systems continue to push back, often citing budget issues as one of the major difficulties.

Watch the clip above from the National Geographic channel's documentary "Sleepless in America" for more on why schools should start later.

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