It might have come out in some other form.

It might have appeared in irritability.

It might even have shown itself in downright ugliness.
Whatever the effects are, whether exaggerated conscience, exaggerated anxiety, or irritability, the immediate cause of the trouble in such cases as I refer to is in the fact that the stomach has been given too much to do.
We give the stomach too much to do if we put a great deal of food into it when it is tired.

We give it too much to do if we put into it the wrong kind of food.

We give it too much to do if we insist upon working hard ourselves, either with body or brain, directly after a hearty meal.
No matter how busy we are we can protect our stomachs against each and all of these three causes of trouble.
If a woman is very tired her stomach must necessarily be very tired also.