Tag Archives: sleep

An Extra Half-Hour of Sleep? An Extra Hour?

Students whose first class started later than 8:30 got between 27 and 57 (!) more minutes of sleep than students whose classes started earlier. Imagine just how much more learning might happen if a teen regularly got an extra hour of sleep. Continue reading



Posted in L&B Blog | Tagged , | Leave a comment

Bright Screens and Sleep

Here’s a handy review of the effects that bright computer and tablet screens have on sleep. (Hint: they’re not helping.) Author Viatcheslav Wlassoff concludes with a few simple hints on how to reduce the detrimental effects of screens on melatonin.



Posted in L&B Blog | Tagged , | Leave a comment

Parents, High School Start Times, and Sleepy Teens

Research findings that support later high-school start times have been more and more common in recent years. (See also here.) And teachers I know are increasingly vocal about letting teens sleep later. And yet, when I talk with high school



Posted in L&B Blog | Tagged , | Leave a comment

The Evidence Mounts: Delaying Middle and High School Start Times

Here’s the statement from the Journal of Clinical Sleep Medicine: During adolescence, internal circadian rhythms and biological sleep drive change to result in later sleep and wake times. As a result of these changes, early middle school and high school



Posted in L&B Blog | Tagged , | Leave a comment

Does Later High School Start Time Really Lead to More Sleep?

Yes. Ask Canada. Or, better still, gather data from 30,000 Canadian high school students.  



Posted in L&B Blog | Tagged , | Leave a comment