Eating too much...

These days I've got used to having much portion for each meal. That is not healty, first of all. Besides it, it makes me feel sleepy after eating a lot. This is because big amount of blood will be conveyed and concentrated on the stomach from all of the body, and the amount of blood inside brain decreases. As a result of it, you feel sleepy after having each meal. I know the mechanism, but I can not stop eating. I finally realized it's really useless. From tomorrow, I will correct my bad eating habit.