> Why do I become tired earlier?

Why do I become tired earlier?

Posted at: 2014-06-09 
I used to be able to stay up until 3 or 1. The earliest I would go to sleep was 12! It is senior year so I didn't get very much sleep at the beginning. I got around 30-35 hours a full week. It was bad. Now, I can't stay up passed 10 AT ALL. I don't understand it. I will fall asleep at 10, wake up at 2am, study, and go back to sleep until 6:30. I am so tired as I am typing this. Oh well, just explain why you think I might become so tired so early!