Such then is the influence of the mind over the body that anyone who wishes to cultivate good health must correct the faulty habit of always thinking of herself. The most suitable form of diversion will depend upon personal taste. Domestic duties absorb the attention of most prospective mothers, but domestic duties should not occupy them exclusively. Outdoor recreation is necessary and serves the double purpose of strengthening mind and body. Public amusements should also be patronized; no prospective mother has the right to sacrifice herself to pride. Music, the various arts, a systematic course of reading, the acquisition of a foreign language--all these are commendable forms of diversion, and others will occur to anyone. Obviously the avocation will be most happily chosen if it directs the attention into channels likely to lead to the greatest pleasure. CHAPTER VII THE AILMENTS OF PREGNANCY Nausea and Vomiting--Heartburn--Flatulence--Defective Teeth--Pressure Symptoms: Swelling of the Feet; Varicose Veins; Hemorrhoids; Shortness of Breath--Leucorrhea--Toxemias. Most of the ailments to which prospective mothers are liable are merely the natural manifestations of pregnancy, exaggerated to such an extent as to cause inconvenience and discomfort. In the early months, for example, persistent nausea and vomiting may become the source of great annoyance, and later the pressure of the womb against neighboring structures may cause a variety of symptoms. It does not follow, however, that any of these ailments will necessarily appear. On the contrary, many women are more healthy during pregnancy than at any other time. Occasionally illness is charged to pregnancy with which in reality pregnancy has nothing to do. While awaiting the birth of a child, just as at other times, women may suffer from coughs or colds, from aches or pains, from malaria, pneumonia, typhoid fever, or in fact from any disease. It is evident that such complications are accidental; and, though pregnancy confers no immunity against them, it does not, on the other hand, render women more susceptible to all kinds of ailment. And yet there are diseases for which pregnancy is directly responsible. These are, to a very large extent, preventable; and, though they occur rarely, precautions for their prevention should be taken in every case of pregnancy. By far the most important members of this group are the toxemias of pregnancy. These, as will be explained later, cause symptoms which the patient herself may recognize, and her physician may often detect their presence still earlier by alterations in the composition of the urine. For this reason routine examination of the urine during pregnancy is a means of prevention indispensable for safeguarding the health of the prospective mother.