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Table of contents
THE CONQUEST OF THE VENEREAL DISEASES-8.1
THE CONQUEST OF THE VENEREAL DISEASES-8.2
THE CONQUEST OF THE VENEREAL DISEASES-8.3
THE CONQUEST OF THE VENEREAL DISEASES-8.4
THE CONQUEST OF THE VENEREAL DISEASES-8.5
THE CONQUEST OF THE VENEREAL DISEASES-8.6
FOOTNOTES
SEXUAL MORALITY-9.1
SEXUAL MORALITY-9.2
SEXUAL MORALITY-9.3
SEXUAL MORALITY-9.4
SEXUAL MORALITY-9.5
SEXUAL MORALITY-9.6
SEXUAL MORALITY-9.7
SEXUAL MORALITY-9.8
SEXUAL MORALITY-9.9
MARRIAGE-10.1
MARRIAGE-10.2
MARRIAGE-10.3
MARRIAGE-10.4
MARRIAGE-10.5
MARRIAGE-10.6
MARRIAGE-10.7
MARRIAGE-10.8
MARRIAGE-10.9
MARRIAGE-10.10
MARRIAGE-10.11
MARRIAGE-10.12
FOOTNOTES
THE ART OF LOVE-11.1
THE ART OF LOVE-11.2
THE ART OF LOVE-11.3
THE ART OF LOVE-11.4
THE ART OF LOVE-11.5
THE ART OF LOVE-11.6
THE ART OF LOVE-11.7
THE ART OF LOVE-11.8
THE ART OF LOVE-11.9
THE ART OF LOVE-11.10
THE ART OF LOVE-11.11
FOOTNOTES
THE SCIENCE OF PROCREATION-12.1
THE SCIENCE OF PROCREATION-12.2
THE SCIENCE OF PROCREATION-12.3
THE SCIENCE OF PROCREATION-12.4
THE SCIENCE OF PROCREATION-12.5
THE SCIENCE OF PROCREATION-12.6
THE SCIENCE OF PROCREATION-12.7
THE SCIENCE OF PROCREATION-12.8
THE SCIENCE OF PROCREATION-12.9
FOOTNOTES
INDEX OF AUTHORS

opinion on this subject have usually come very near to Luther's dictum. 

Haller said that intercourse should not be much more frequent than twice a 

week.[392] Acton said once a week, and so also Hammond, even for healthy 

men between the ages of twenty-five and forty.[393] Fuerbringer only 

slightly exceeds this estimate by advocating from fifty to one hundred 

single acts in the year.[394] Forel advises two or three times a week for 

a man in the prime of manhood, but he adds that for some healthy and 

vigorous men once a month appears to be excess.[395] Mantegazza, in his 

_Hygiene of Love_, also states that, for a man between twenty and thirty, 

two or three times a week represents the proper amount of intercourse, and 

between the ages of thirty and forty-five, twice a week. Guyot recommends 

every three days.[396] 

 

It seems, however, quite unnecessary to lay down any general rules 

regarding the frequency of coitus. Individual desire and individual 

aptitude, even within the limits of health, vary enormously. Moreover, if 

we recognize that the restraint of desire is sometimes desirable, and 

often necessary for prolonged periods, it is as well to refrain from any 

appearance of asserting the necessity of sexual intercourse at frequent 

and regular intervals. The question is chiefly of importance in order to 

guard against excess, or even against the attempt to live habitually close 

to the threshold of excess. Many authorities are, therefore, careful to 

point out that it is inadvisable to be too definite. Thus Erb, while 

remarking that, for some, Luther's dictum represents the extreme maximum, 

adds that others can go far beyond that amount with impunity, and he 

considers that such variations are congenital.[397] Ribbing, again, while 

expressing general agreement with Luther's rule, protests against any 

attempt to lay down laws for everyone, and is inclined to say that as 

often as one likes is a safe rule, so long as there are no bad 

after-effects.[398] 

 

It seems to be generally agreed that bad effects from excess in 

coitus, when they do occur, are rare in women (see, e.g., 

Hammond, _Sexual Impotence_, p. 127). Occasionally, however, evil 

effects occur in women. (The case, possibly to be mentioned in 

this connection, has been recorded of a man whose three wives all 

became insane after marriage, _Journal of Mental Science_, Jan., 

1879, p. 611.) In cases of sexual excess great physical 

exhaustion, with suspicion and delusions, is often observed. 

Hutchinson has recorded three cases of temporary blindness, all 

in men, the result of sexual excess after marriage (_Archives of 

Surgery_, Jan., 1893). The old medical authors attributed many 

evil results to excess in coitus. Thus Schurig (_Spermatologia_, 

1720, pp. 260 et seq.) brings together cases of insanity, 

apoplexy, syncope, epilepsy, loss of memory, blindness, baldness, 

unilateral perspiration, gout, and death attributed to this 

cause; of death many cases are given, some in women, but one may 

easily perceive that _post_ was often mistaken for _propter_. 

 

 

There is, however, another consideration which can scarcely escape the 

reader of the present work. Nearly all the estimates of the desirable 

frequence of coitus are framed to suit the supposed physiological needs of 

the husband,[399] and they appear usually to be framed in the same spirit 

of exclusive attention to those needs as though the physiological needs of 

the evacuation of the bowels or the bladder were in question. But sexual 

needs are the needs of two persons, of the husband and of the wife. It is 


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