When we are tired, the very fact
of being tired makes us more tired, unless we rest properly.
A great deal--it seems to me more than one-half--of the fatigue in
the world comes from the need of an intelligent understanding of how
to keep rested. The more that lack of intelligence is allowed to
grow, the worse it is going to be for the health of the nation. We
have less of that plain common sense than our grandfathers and
grandmothers. They had less than their fathers and mothers. We need
more than our ancestors, because life is more complicated now, than
it was then. We can get more if we will, because there is more real
understanding of the science of hygiene than our fathers and mothers
had before us. Our need now is to use _practically_ the information
which a few individuals are able to give us, and especially to teach
such practical use to our children.
Let us find out how we would actually go to work to keep rested, and
take the information of plain common sense and use it.
To keep rested we must not overwork our body inside or outside. We
must keep it in an equilibrium of action and rest.
We overwork our body inside when we eat the wrong food and when we
eat too much or not enough of the right food, for then the stomach
has more than its share of work to do, and as the effort to do it
well robs the brain and the whole nervous system, so, of course, the
rest of the body has not its rightful supply of energy and the
natural result is great fatigue.
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