nd that the disease called 'a
cold' is generally caused by impure air, lack of exercise, or
overeating."

[Sidenote: So-called "Overwork"]

Most people who are "overworked" are, more properly speaking, simply the
victims of bad air, bad diet, poisons, or worry. They believe that
because they are tired it must be work which is hurting them. The man
who breaks down in middle life commonly imagines that he has ruined his
health by overwork. The college girl thinks she has ruined her health by
study. All these "overworked" people prove their case by showing that
they improve in health when given a vacation. This simply shows that a
bad condition can often be remedied by improving the general health in
any way whatever, even if the primary source of the difficulty is not
reached. They are undoubtedly working beyond their working capacity; but
their working capacity is only a fraction of what it would be if they
took exercise, were not constipated, did not eat too much, abjured
alcohol, or ceased to worry continually. If they lived hygienically in
these respects, the work which was a drag might be an inspiration. A
physician of wide experience says that every day men come to him broken
down in health, invariably telling him that they have overworked; and
yet upon questioning them he finds that none of them works as hard as
he. Their breakdown was due to the terrible load of unphysiological
habits which they had been carrying--a load so great that scarcely any
work could be carried in addition.

[Sidenote: An All-round Regime]

Other examples might be given of ascribing ailments and disabilities to
the less important instead of the more important causes. The error is
almost always made of resting the blame on only one cause. In
consequence most health-seekers make the mistake of making only one
correction in their daily regime of life. One will cease alcohol
drinking, another will give up tobacco smoking, another will give up
coffee; a third will cease using all "red meats," another turns
vegetarian, another adopts a raw food diet; another takes up outdoor
sleeping; another adopts a daily game of golf; another embraces a mental
healing cult; another takes up mastication. But great and permanent
results require the adoption of an all-round, well-balanced regime.

Section III--The Obstacles to Hygiene

[Sidenote: Effort of the Will]

It is not enough that the individual should know how to live. Knowledge
is of no avai