afoot.

Facts of this nature suggest that the putting on of fat must be due to
very generalized conditions, and be less under the control of local
causes than is the nutrition of muscles, for, while it is true that in
wasting from nerve-lesions the muscular and fatty tissues alike lessen,
it is possible to cause by exercise rapid increase in the bulk of muscle
in a limb or a part of a limb, but not in any way to cause direct and
limited local increment of fat.

Looking back over the whole subject, it will be well for the physician
to remember that increase of fat, to be a wholesome condition, should be
accompanied by gain in quantity and quality of blood, and that while
increase of flesh after illness is desirable, and a good test of
successful recovery, it should always go along with improvement in
color. Obesity with thin blood is one of the most unmanageable
conditions I know of.

The exact relations of fatty tissue to the states of health are not as
yet well understood; but, since on great exertion or prolonged mental or
moral strain or in low fevers we lose fat rapidly, it may be taken for
granted that each individual should possess a certain surplus of this
readily-lost material. It is the one portion of our body which comes and
goes in large amount. Even thin people have it in some quantity always
ready, and, despite the fluctuations, every one has a standard share,
which varies at different times of life. The mechanism which limits the
storing away of an excess is almost unknown, and we are only aware that
some foods and lack of exertion favor growth in fat, while action and
lessened diet diminish it; but also we know that while any one can be
made to lose weight, there are some persons who cannot be made to gain a