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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  I want to help you to grow as beautiful as God meant you to be when
  He thought of you first.

  George MacDonald.

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CHAPTER VII

THE SIGN LANGUAGE

Do you know one way we can tell if all the organs are doing their work well?  By watching for the sign language.  If the blood is not carrying the skin sufficient nourishment, it will be very pale and dull looking.  If the waste materials are not being carried off, they may accumulate in the skin and clog the pores.  Then we will have pimples or blackheads.  Each person’s skin is a law unto itself, and what is beneficial to one may not be to another.  Generally, though, it will be found helpful to bathe the face at night with hot water, to remove all dirt; then, if the skin is rough, massage with good cold cream.  In the morning a quick rub with cold water should be taken (and do not be afraid to rub the face a little).  If you are going out in the sun or wind, follow with a little good talcum or rice powder, to protect the face from the raw winds, or, if the skin is inclined to be dry, apply a little cold cream before using the powder.  Any eruptions on the face show a defect in the circulation.  The blood is not disposing of the waste material properly, and it is being left to clog the pores of the skin.  These eruptions should not be neglected, as they sometimes indicate a serious condition of the blood or circulation.