ne must be
excluded.

*Danger from Certain Medicinal Agents.*--Among the most valuable drugs used
by the physician in the treatment of disease are several, such as
morphine, chloral, and cocaine, which possess the habit-forming
characteristic. Sad indeed are the cases in which some pernicious drug
habit has been formed through the reckless administration of such
medicines. Even the taking of such a drug as quinine as a "tonic" tends to
develop a dependence upon stimulation which is equivalent to a habit. In
the same list come also the drugs that are taken to relieve a frequently
recurring indisposition, such as headache. The so-called headache powders
are most harmful in their effects upon the nervous system and should be
carefully avoided.(139)

*Stimulants in Health Unnecessary.*--Stimulants have been aptly styled "the
whips of the nervous system." The healthy nervous system, however, like
the well-disposed and well-fed horse, needs no whip, but is irritated and
harmed through its use. Even in periods of weakness and depression,
stimulants are usually not called for, but a more perfect provision for
hygienic needs. Rest, relaxation, sleep, proper food, and avoidance of
irritation, not stimulants, are the great restorers of the nervous system.
A surplus of nervous energy gained through natural means is more conducive
to health and effective work than any result that can possibly be secured
through drugs. Then withal comes the satisfaction of knowing that one has
the expression of his real self in the way in which he feels and in what
he accomplishes--not a "whipped-up" condition that must be paid for by
weakness or suffering later on.

*Summary.*--To solve the problem of keeping well, one must live the life
which is in closest harmony with the plan of the body. Such a life,
because of differences in physical organization, as well as differences in
environment and occupation, cannot be the same for all. All, however, may
observe the conditions under which the body can be used without injuring
it and the special hygienic laws relative to the care of different organs.
Causes of disease, whether they be in one's environment, vocation, in his
use of foods or drugs, or in his mode of recreation, must either be
avoided or counteracted.

While the problem is beset with such difficulties as lack of sufficient
knowledge, inherited weakness, and time and opportunity for doing what is
known to be best for the body, yet study a