If the air of the bed-room be impure, the complexion, eyes and
nerves must soon suffer. The hours of sleep are hours of
recuperation. But that the building-up work may go on, pure air is
indispensable. During the night the doors are not opened; there is
no moving about; all is at a stand-still. Now the windows must be
wide open. Unless there be a storm or the weather be intensely cold,
the upper sash must come half way down, and the lower sash go half
way up. If your ears are cold cover them, but give your lungs and
blood pure oxygen, and plenty of it.
If you would have beauty of skin and eyes, if you would enjoy a
cheerful temper, and retain a youthful bloom, you must breathe a
pure air all night, and all day, and always. No other law of health,
no condition of beauty, is so imperative as this.
When you go into the street, don't wear a veil and keep the air away
from your lungs. Let it come in freely; it is your best friend.