because you are frightened at something or are afraid that your ears
will get cold. Your breath has poisonous gases in it, as well as your
perspiration; and the two together make the air under the bedclothes
very bad.

Now you are ready to wash and dress. But before you do this, it is a
good thing to take off your nightdress, or turn it down to your waist
and tie it there with the sleeves, and go through some good swinging
and "windmill" movements with your arms and shoulders and back.

(1) Swing your arms round and round like the sails of a windmill;
first both together, then one in one direction, and the other in the
other.

(2) Hold your arms straight out in front of you, and swing them
backward until the backs of your hands strike behind your back.

(3) Hold your arms straight out on each side, clench your fists, and
then smartly bend your elbows so that you almost strike yourself on
both shoulders, and repeat quickly twenty or thirty times.

(4) Swing your arms, out full length, across your chest five or ten
times.

(5) Swing forward and down with your arms stretched out, until the
tips of your fingers touch the floor.

(6) Set your feet a little apart, swing forward and downward again,
until your hands swing back between your ankles.