Plain Facts for Old and Young

by John Harvey Kellogg

Many people wonder why it is that diseases are so much more numerous and varied in modern times than in the earlier ages of the race. There has been an evident increase within a few centuries. While there are, undoubtedly, numerous influencing causes, one which cannot be overlooked is the hereditary transmission of disease, which preserves those disorders which already exist, and adds new ones which originate from new exciting causes. By this means, the human race is undoubtedly being weakened, human life shortened, and diseases multiplied. Compare the average age of human beings of the present day, less than forty years, with the longevity of the early members of the race, who lived more than as many score of years. Some mighty deteriorating influence has been at work; and we hazard nothing in the assertion that the marriage of diseased persons and kindred violations of the laws of human hygiene have been not unimportant factors in producing this most appalling diminution in the length of human life.

Among the diseases which are most certain to be transmitted are pulmonary tuberculosis, or consumption, syphilis, cancer, leprosy, epilepsy, and some other nervous disorders, some forms of skin disease, and insanity. The list might be extended; but these are the more common. Persons suffering with these disorders have no right to marry, for at least four reasons:—

(1) It is a sin against the offspring of such unions, who have a right to be born well, but are forced to come into the world with weakly constitutions, diseased frames, and the certainty of premature death. The children of consumptive and syphilitic parents rarely survive infancy. If they do, it is only to suffer later on, as they surely will, and, perhaps, to communicate the same destructive diseases to other human beings; but these diseases rarely extend beyond the third generation, the line becoming extinct. The most heart-rending spectacles we have ever met have been the children of parents suffering with the diseases mentioned. Their appearance is characteristic; no physician of experience can fail to detect the sins of a profligate parent in a syphilitic child. Every feature indicates the presence of a blighting curse.

There are those who assert that a man who has suffered with disease of the character last mentioned may marry after the lapse of two or three years from the disappearance of the active symptoms of the malady. Such assertions we consider as most dangerous and pernicious. The individuals who make them are well acquainted with the fact that of all diseases this is the most difficult to eradicate when once the system has become thoroughly infected by it. Not only three years but thirty years may elapse after active symptoms disappear, yet the disease may break out again in a new and still more serious and complicated form. It may even lie entirely dormant or latent in the system of the parent during his lifetime, but break out in all its terrible destructiveness in his children. A man or woman who has once suffered with this fell disease is contaminated for life; and it is a crime for such an one to entail upon innocent, unoffending human beings such a terrible legacy. Such a person has no right to marry; or if married, has no right to perpetuate the results of his sins in offspring. It is never safe to say to a man who has once been infected that he is cured. If a cure ever takes place, it is exceedingly rare.

(2) It is a crime against the race. One of the primary objects of marriage is reproduction. As members of the human race, it is the duty of parents to produce a high type of human beings, at least to do all in their power to produce healthy offspring. If they cannot do this, and are aware of the fact, they are guilty of abuse of the reproductive function in bringing sickly offspring into the world to suffer.

(3) It is injurious to the contracting parties themselves. If a person has a communicable disease, as syphilis, leprosy, and some bad forms of skin disease, the disease will certainly be communicated to the wife or husband, and so a double amount of suffering will be entailed. The dread disease, consumption, rightly called the scourge of civilization, is now well known to be communicable. A few years ago we were consulted by an old gentleman, a native of Canada, who was suffering with pulmonary disease. We inquired respecting the history of the malady. Said he, "Doctor, it may seem strange, but I believe I inherited consumption from my wife, who died of consumption a few years ago." Excepting the wrong use of the term inherit, we were not prepared to dispute the old gentleman's ideas respecting the origin of his disease. Living in close association for years with his wife, who was slowly dying with disease of the lungs, it was quite possible for him to have received the disease from her. So many cases of this kind have been reported that it is now generally believed by medical men that consumption is communicable from one person to another by the reception into the system of the well person of the exhalations from the lungs of the person affected.

Another point worthy of mention here is the well-known fact that the intimate association of married people modifies even the physical form of both. Almost every one has noticed how much alike in appearance married people who have lived many years together come to be. This physical change undoubtedly extends further than to the features only. The whole constitution is modified.

A remarkable illustration of this fact is found in the frequent observation that the children of a woman by a second husband often resemble in appearance the first husband much more than their own father. It has been observed that the children of negro women, even by husbands of pure negro blood, are much lighter in color than usual if she has had a child by a white man previously.

The same fact is observed in lower animals. In England, some years ago, a cross was effected between a male zebra and several young mares. Not only the hybrid colts resulting from this union, but all the colts afterward foaled by the same mares, from other horses, were striped like the zebra.

In view of these facts, it is evident that the system of the woman, at least, may be profoundly affected in a similar manner by constitutional weaknesses, as well as by other individual peculiarities possessed by her husband.