the mean mortality from all causes in the three cholera years was, for males, 19.3 in excess, for females, 17.0 in excess of the average mortality to 10,000 living; so females suffered less than males.... The mortality is higher in boys than in girls at all ages under 15; at the ages of reproduction, 25 to 45, the mortality of women, many of them pregnant, exceeds the mortality of men; but at the ages after 65 the mortality of men exceeds the mortality of women.[80]

Statistics show that woman is more susceptible to many diseases, but in less danger than man when attacked, because of her anabolic surplus, and also that the greatest mortality in woman is during the period of reproduction, when the specific gravity of the blood is low and her anabolic surplus small. It is significant also that the point of highest mortality from disease and of the highest rate of suicide in the female, as compared with the male, falls at about 15 years, and is to be associated with the rapid physiological changes preceding that time.[81]

The numerical relation of the sexes at birth seems to be more variable in those regions where economic conditions and social usages are least settled, but in civilized countries the relation is fairly constant, and statistics of 32 countries and states between the years 1865 and 1883 show that to every 100 girls 105 boys are born, or including stillborn, 100 girls to 106.6 boys.[82] But the mortality of male children so much exceeds that of female that at the age of five the sexes are about in numerical equilibrium; and in the adult population of all European countries the average numerical relation of the sexes is reckoned as 102.1 women to 100 men. Von Oettingen gives a representative table;[83] compiled from statistics of eight European countries, showing that (omitting the stillborn) 124.71 boys to 100 girls die before the end of the first year, and that between the years of 2 and 5 the proportion is 102.91 boys to 100 girls; or, about 25 per cent. excess of boys in the first year, and 3 per cent. in the years between 1 and 5. In the intra-uterine period and at the very threshold of life the mortality of males is still greater. The figures of Wappaeus were 100 stillborn girls to 140.3 boys; Quetelet gave the proportion as 100:133.5; and the statistics of fourteen European countries during the years 1865-83 show that 130.2 boys were stillborn to every 100 girls.[84] So that, while more boys than girls are born living, still more are born dead. That this astonishingly high mortality is due in part to the somewhat larger size of boys at birth and the narrowness of the maternal pelvis is indicated by the statement of Collins, of the Rotunda Lying-in Hospital, Dublin, that within half an hour after birth only 1 female died to 16 males; within the first hour 2 females to 19 males; and within the first 6 hours, 7 females to 29 males.[85] But that this explanation is not sufficient is shown by the fact that a high mortality of boys extends through the whole of the first year, and through five years, in a diminishing ratio, and also that the tenacity of woman on life, as will be shown immediately, is greater at every age than man's except during a period of about five years following puberty. "There must be," says Ploss, "some cause which operates more energetically in the removal of male than of female children just before and after birth;"[86] but, besides the more violent movement of boys and their greater size, no explanation of the cause has been advanced more acceptably than Haushofer's teleological one, quoted by Ploss, that Nature wished to make a more perfect being of man and therefore threw more obstacles in his way. A satisfactory explanation is found if we regard the young female as more anabolic, and more quiescent, with a stored surplus of nutriment by which in the helpless and critical period of change from intra- to extra-uterine conditions it is able to get its adjustment to life. The constructive phase of metabolism has prevailed in them even during fetal life. That there is need of a surplus of nutrition in the child at birth, or that a surplus will stand it in good stead, is indicated by the results of the weighing of children communicated by Winckel to the Gynaecological Society in Berlin in 1862. Winckel weighed 100 new-born children, 56 boys and 44 girls, showing that birth was uniformly followed by a loss of weight. The average diminution was about 108 grams the first day, and but little less the second day. At the end of five days the loss was 220 grams, six-sevenths of which occurred during the first two days.[87] The tendency to decreased vitality in girls after maturity and before marriage, just referred to, must be associated with the katabolic changes implied in menstruation and the newness to the system of this destructive phase of metabolism.

We should expect the death-rate of men to run high during the period of manhood, in consequence of their greater exposure to peril, hardship, and the storm and stress of life. But two tendencies operate to reduce the comparative mortality of men between the twentieth and about the fortieth year: the fact of the severe male mortality in infancy, which has removed the constitutionally weak contingent, and the fact that during this period women are subject to death in connection with childbirth. So that in the prime of life the mortality of males does not markedly exceed that of females. But the statistics of longevity show that with the approach of old age the number of women of a given age surviving is in excess of the men, and that their relative tenacity of life increases with increasing years. Ornstein has shown, from the official statistics of Greece from 1878 to 1883, that in every period of five years between the ages of 85 and 110 years and upward a larger number of women survive than of men, and in the following proportion:

YearsMenWomen
85-901,2961,347
90-95700820
95-100305370
100-105116168
105-1105269
110 and over2034

Of the 459 centenarians 188 were men and 271 were women.[88] In Bavaria the women aged from 51 to 55 years alive in 1874 had lived in the aggregate more than seven million years, while the men of the same age had lived not so much as six and one-half million.[89] Turquan[90] gives a table showing the death-rate of centenarians in all France during a period of twenty years (1866-85). From this it appears that there died in these years an annual average of 73 centenarians, of whom 27 were men and 46 women. In only one year of the twenty did the deaths of men exceed those of women. Lombroso and Ferrero have shown that between 1870 and 1879 the inhabitants of the prisons and convict establishments in Italy who were over 60 years of age showed a percentage of 4.3 among the women, and 3.2 among the men, although the number of men condemned to prison for long periods is far greater than among women.

Women are not only longer-lived than men, but have greater powers of resistance to misfortune and deep grief.

This is a well-known law, which in the case of the female criminal seems almost exaggerated, so remarkable is her longevity and the toughness with which she endures the hardships, even the prolonged hardships, of prison life.... I know some denizens of female prisons who have reached the age of 90, having lived within those walls since they were 29 without any grave injury to health.[91]

Woman's resistance to death is thus more marked at the two extremes of life, infancy and old age, the periods in which her anabolism is uninterrupted. Menstruation, reproduction, and lactation are at once the cause of an anabolic surplus and the means of getting rid of it. At the extremes of life no demand of this kind is made on woman, and her anabolic nature expresses itself at these times in greater resistance.