Overeating, no matter what the quality of the food, clogs your living machine, and thus hinders it in its work. Eating more than the stomach can hold adequately is very common. When too much food is eaten at one time the entire system is burdened. The stomach is so stuffed that it can not mix the digestive juices properly with the food. The surplus food that is put into the stomach makes it hard for your system to do its work.
Surplus food calls too much blood to the stomach, causing the arms and legs to chill quickly.
It makes desperate efforts to dispose of it, and this extra work causes a tired, weary feeling. Also the brain is clouded, thoughts are sluggish, and you fail to accomplish as much as you might have. Life and energy are called from the brain to work the mill which grinds the material you have placed in your stomach. In this we do our bodies no favors. I have heard it said that the hardest exercise is pushing away from the table.