ABSTRACT
How did you feel yesterday? How about today? Are you currently energized, lethargic, sanguine, irritated, or even indifferent? One of the biggest factors determining how you feel each day is the amount of sleep you get the night before. Think for a minute about how you feel after a really good sleep. Your mood is excellent, and the day may seem full of possibilities. What about days when you did not sleep well at all? Perhaps something was bothering you so you couldn’t fall asleep, or maybe you stayed up most of the night studying for a test or writing a paper. How did you feel after that terrible night of sleep? If you are similar to most people, you know that it will be a tough day as soon as you get out of bed. No one ever looks in the mirror after a terrible night of sleep and says, “Wow, today is going to be great.”
