since overexertion then, more than at other times, is apt to be
followed by miscarriage. Except in rare cases the observance of this
precaution is less urgent after the fourth month, when the ovum has
become more securely attached to the womb. But again, toward the end
of pregnancy the development of the mother's body necessitates a
comparatively large amount of rest; patients who continue to exert
themselves may expect to suffer from shortness of breath and a number
of other annoyances.

In order to save needless steps and to avoid confusion and worry, it
is always helpful to map out beforehand what must be done in the
course of the day. Ideally, such a schedule should set apart
intervals for relaxation and rest. In the morning, for example, while
the housework is in progress, it is important to stop occasionally,
if only for a few moments, and lie down on a couch. After the midday
meal it is advisable to undress and go to bed. Even though one does
not fall asleep, an hour or two of complete relaxation will be
beneficial. A nap in the afternoon does not interfere with sleeping
at night provided plenty of exercise has been taken during the day.
In this way walking in the late afternoon or early evening helps to
secure a good night's rest.

During the first six or seven months, pregnancy, in itself, does not
cause sleeplessness, but later, as a natural result of the
enlargement of the womb, there are several disagreeable symptoms
which may cause broken rest at night. In the later months the weight
of the womb requires women to sleep on the side, and for some of them
this position is awkward at first. Frequently the pressure makes it
necessary to get up several times during the night to empty the
bladder. In a few cases also the compression of the chest interferes