of direct sunlight enters an otherwise
darkened room.

34 Some children find it difficult to breathe through the nostrils on
account of growths (called adenoids) in the upper pharynx. Such
children should have medical attention. The removal of these growths
not only improves the method of breathing, but in many instances
causes a marked improvement in the general health and personal
appearance.

35 The weakest portions of the lungs appear to be the tiny lobes at the
top. As they occupy the part of the thorax most difficult to expand,
air penetrates them much less freely than it does the lobes below.
In most cases of consumption (some authorities give as high as
eighty per cent), the upper lobes are the first to be affected. Flat
chests and round shoulders, by increasing this natural difficulty in
breathing, have long been recognized as causes which predispose to
consumption.

36 The following exercise, from Dudley A. Sargent's _Health, Strength,
and Power_, will be found most beneficial: "Stand with the feet
together, face downward, arms extended downward, and backs of the
hands touching. Raise the hands, arms, and elbows, keeping the backs
of the hands together until they pass the chest and face. Then
continue the movement upward, until the hands separate above the
head with the face turned upward, when they should be brought
downward and outward in a large circle to the starting point. Begin
to inhale as the arms are raised and take in as much air as possible
by the time the hands are above the head, then allow the breath to
go out slowly as the arms descend."

37 Colds may frequently be broken up at their beginning by taking a
prolonged _hot_ bath and going to bed. After getting a start,
however, they run a course of a few days, a week, or longer,
depending upon the natural vigor of the individual and the care
which he gives his body during the time. In throwing off a cold, the
following suggestions will be found helpful:

1. Dress warmly (without overdoing it) and avoid getting chilled. 2.
Diminish the usual amount of work and increase the period for sleep.
If very weak, stay in bed. Save the energy for throwing off the
cold. 3. If able to be about, spend considerable time in light
exercise out of doors,