It’s that crazy part of the semester. Finals are coming up, and you find yourself staying awake later and later trying to cram for important tests. The night before your toughest final, you decide to pull an all nighter. It’s the only way you’ll be able to learn all those facts. The day of the test, you feel awful, but you make it through, and have a feeling you probably passed. As you go back to your dorm to crash, all seems well. You think to yourself, “that one night of lost sleep probably won’t hurt me at all.