The skin is constantly secreting oil. It oozes out and lies on the
surface.
We live in an atmosphere filled with dust, besides, there is
constantly escaping from our clothes, dust and dirt of various
kinds. These things, with the oil of the skin, plug up a portion of
the pores, so that the effete, dirty matter cannot escape.
Keeping these poisons in the system, not only produces pimples upon
the face, and discoloration of the skin, but dullness and heaviness
of the whole system. The mind becomes foggy, the spirits low, the
muscles stiff and sore, the breath and perspiration offensive, the
whole system unclean.
Those portions of our skins that we cover with clothes are somewhat
difficult to keep clean. Roll up your sleeve when your arm is
perspiring, and rub the skin hard with your naked hand. You will be
surprised at the rolls of dirt which the rubbing will bring away.
You may rub some minutes in the same place, before the little rolls
will stop coming. This dirt is held by the oil of the skin.