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The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
byKryptonian Jor-El ( 970056 ) writes:
Teens will just stay up later
bysydneyfong ( 410107 ) writes:
If you read TFA @ https://pediatrics.aappublicat... [aappublications.org]
Early studies addressed a core question: âoeDoes delaying start time result in students obtaining more sleep, or do students just stay up later and thus negate the effects of the delayed start time?â
Wahlstrom et al50,51 assessed more than 18â000 high school students in Minneapolis before and after the districtâ(TM)s school start time changed from 7:15 am to 8:40 am beginning with the 1997â"1998 school year. Bedtimes after the change were similar (ie, did not shift to a later time) to those of students in schools that did not change start times, and, as a result, students obtained nearly 1 additional hour of sleep on school nights during the 1999â"2000 school year. Other studies have also failed to show a delay in bedtime in response to delayed start times. In a study involving grades 6 through 12 in a school district that delayed high school start times by 1 hour (7:30 to 8:30 am), students averaged 12 to 30 minutes more nightly sleep, and the percentage of students who reported â¥8 hours of sleep increased from 37% to 50%.52 Owens et al,53 in a study of adolescents attending an independent school that instituted a start time delay of 30 minutes (from 8:00 to 8:30 am), reported that average bedtimes actually shifted earlier by an average of 18 minutes, and mean self-reported school night sleep duration increased by 45 minutes. In addition, the percentage of students getting less than 7 hours of sleep decreased by 79%, and those reporting at least 8 hours of sleep increased from 16% to 55%. Finally, in a 3-year study of >9000 students from 8 public high schools in 3 states (Colorado, Wyoming, and Minnesota), the percentage of students sleeping â¥8 hours per night was dramatically higher in those schools that had a later start time (eg, 33% at 7:30 am vs 66% at 8:55 am).
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byChrisMaple ( 607946 ) writes:
Please use Preview and edit out footnote numbers and weird punctuation, so that your post is readable
Not like this
Please use Preview and edit52,53 out footnote23 numbers and weird34,27 punctuation, so that your@(TM) post is readable.
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