It is worthy of remark that cancer begins to appear at a wholesale rate at the age when metabolism begins to slow up, and some time after the body growth has become fully established. At this period people are apt to lose the balance between physical effort and the intake of food, eating as much as ever, perhaps more, while becoming more sedentary. At the same time the emunctories become less active. The various affections of metabolism now tend to appear and are associated with imperfect oxidation, or diminished tolerance toward certain ingesta. It is interesting to note that in a study of many thousand cases of eczema I found the disease to be actually more frequent, in proportion to those living, between the ages of 50 and 55 than at any other period of life after the infantile period, or the first five years of life; just about the same time when cancer is most common. And the constitutional conditions at the bottom of eczema are very much the same as those in cancer. Patients with a cancer just beginning will often, or even generally, seem to be in excellent health. It is indeed remarkable to observe how commonly patients with beginning breast cancer will seem to be in a splendid condition of health. They are ruddy and blooming in appearance, and when the lump is first discovered it is hard indeed to believe that if the erroneous life processes which caused the cancerous lesion to develop are not checked, the patient will before long succumb to the direful disease. Williams remarks that “such types are indications of hypernutrition.” But a most careful study of these patients in every particular will so constantly reveal such errors of life and derangements of metabolism that these must be looked upon as contributing causes, at least, to the development of the local condition which later becomes malignant; in the same way as the patient will appear to be in blooming health just before an attack of acute gout. For when these conditions are rectified by proper dietary and medicinal measures the local cancerous condition not only ceases to develop but actually disappears without surgical removal, as I have repeatedly shown you. These errors and derangements are not commonly evident on a superficial examination, and often are recognized only after very painstaking search, and re-search.