You Need A Nap

No, really, you do. I resisted napping until a few months ago, but have discovered that a mid-afternoon siesta makes me brighter and happier and doesn't cut into my nighttime sleep at all.
But don't take my word for it, here's the science.

It's as though the e-mail inbox in your hippocampus is full and, until you sleep and clear out those fact e-mails, you're not going to receive any more mail. It's just going to bounce until you sleep and move it into another folder," Walker said in a release.