STUDY: All night cram sessions a waste of time
Posted: Aug 21, 2012 9:49 PM EDT | Updated: Nov 6, 2014 7:46 AM EDT

Research shows that those all-night cram sessions probably are not worth the time.
A study in the journal "Child Development" finds evidence that burning the midnight oil to cram for tests is a waste of time.
The research found that when study time cuts down on sleep down on sleep time, kids performed more poorly in the class the day after.