sleepy on class

This is happen when we not sleep early at night, playing a video game or watching movie or hang out with friends. Not only that, as you said we can feel sleepy after took a meal until stomach like gonna blow out. This is because a carbohydrate is make fell sleepy and we could concentrate in the class. The best solution take a breakfast early in the morning, and not taking a carbohydrate just a two slide of bread and drink a cup of coffee. Its bring you an energy to cope on class. when the recess time, you just eat less because you easily can feel sleepy in the class later.

One thing that I regret in my life is that I did not pay much attention in my classes when I was still a student. You will only appreciate the need for knowledge when you have a hard time accessing it.