Hippocampus on Strike

A study has found that the hippocampus, the memory-encoding brain region of the brain, to be slacking off in college students the day after they have pulled an all-nighter. fMRI scans have revealed lower activity in the hippocampus of sleep-deprived students than in well-rested students. This study raises many interesting questions about the relationships between sleep, memory, and emotion.
I found this article to be very interesting because I can relate to feeling the after-effects of pulling an all-nighter.

http://sciencenow.sciencemag.org/cgi/content/full/2006/1018/2