normal degree of strength, and this, when once developed,
can usually be retained by a moderate amount of exercise each day.

Now it is not necessary to adopt some complicated system of exercise for
giving the muscles the required activity. Your exercise can take the
form of play. It may preferably be taken out-of-doors. But you must keep
definitely in mind that the body was given you for active use, and some
regular method must be adopted that will insure the activity required.

The exercises referred to in the chapter on Outdoor Life may first of
all be recommended. If you have no bodily defects any one of these
outdoor sports will probably give your muscles all the exercise needed,
but if you are suffering from defects of any kind and you are
desirous of remedying them some special exercises adapted to your
individual needs should be taken with religious regularity. If you have
a flat or sunken chest, if you are round-shouldered, if there is one
shoulder higher than the other, if there is a spinal curvature, or if
the muscles of the stomach or abdomen are weak, it will be necessary
to give special attention to such parts through systematic movements
intended to have a corrective influence. In another part of this
volume various exercises have been illustrated that are especially
recommended to those who are already in possession of ordinary
strength. In this chapter I am illustrating a series of movements that
have a similar object in view, but which will be found far easier
to perform. The exercises in this chapter are especially adapted to
those who are weak or ailing. They are designed, however, for the
purpose of stimulating and strengthening the spine, which, as I have
previously suggested, is the central source of vitality. The hot-
water-drinking regimen referred to in the chapter on Cleansing the
Alimentary Canal can also be used in connection with these exercises,
though naturally if one is weak but a small quantity of water can be
taken.

CHAPTER VIII: How to Breathe

Volumes have been written upon the value of breathing exercises. Many
exaggerated statements have been made as to what can be
accomplished through deep breathing. Nevertheless, it must be definitely
understood that full, deep breaths, which expand the lungs to
their fullest capacity, and are taken at frequent intervals, are of
great value.

Almost any vigorous exercise will enforce dee