The wall

Wednesday and Thursday went by with little studying partly because I hit the wall of mental exhaustion and partly because I hit the wall of a head cold :( I am ready to kick major booty in the lab for once, but now need to focus on the Common exam. I've tried three times today to memorize study guide pages but my mind is in a cloudy haze. I was hoping blogging would help it, but really my eyes just hurt looking at the screen :$ so back to the study guide attempt #4.....