Internal Clock

I think my internal clock is still set on Arizona's time zone. It hasn't realized that we've moved back to CST. For the past week or so, I have not been able to fall asleep at a decent hour in order to be fully awake and functional at work by 8 a.m. It's hard to be perky and excited about hearing tests (i.e. "ooh, you heard that!" "put the ball in the bucket! good job!") when you really just want to go back to sleep. I'm wide awake but off I go to bed!