contain drugs more powerful and harmful than any pill.

The bowels have some one to assist them, too, for the kidneys carry off
much of the waste material of the body. Indeed, they carry off so much
that they sometimes are called the sewers. It often is necessary to
flush the sewers of the city, that is, to send quantities of water
through them to clean the system. In the same way it is necessary to
flush the kidneys. We do this by drinking plenty of water. Every one
should drink about two quarts of water a day.

There is another worker that helps both the kidneys and the bowels.
This is the skin, which sends off waste material through the tiny pores
or openings. If dirt accumulates on the skin, it clogs the pores so the
skin cannot use them. So you see how necessary it is to take frequent
baths to keep the pores open.

Other helpers that carry some of the waste material from the body are
the lungs, which send out the impure air. The lungs also take in the
pure air, which, you remember, helps to make the red coloring matter
in the blood. If you want to have nice red cheeks, you must breathe in
plenty of fresh air. Also you must have plenty of exercise, so as to
help send the blood all over the body. You know when you run, the blood
flows much faster than when you are quiet. It is a good plan to stand by
an open window every morning and every evening and fill your lungs with
good, pure air, taking about twenty-five deep breaths.




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