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Introduction / Summary (2018): Hello and welcome to our Sexuality pages. While this is not a pornographic site, it is provocative - founded upon what people search on the Internet (which is very interesting!). We then relate this to our biological and cultural evolution.
Sex is obviously important to people - and if you want to improve your sexual relationships then knowing the truth about our human evolution is the best foundation. By opening our minds to a greater diversity of behaviors, this knowledge will help you creatively cultivate healthy pleasurable moral attitudes and sexy smutty relationships (free from religious guilt & cultural myths).
Support an open honest discussion on the truth of our sexual evolution and behaviour. If you support sex positive, moral, informed sexual behaviour please share this knowledge. (These pages have a diverse collection of fascinating information relating to our human sexual evolution so people will appreciate it - see our 'nice letters' page!).
Sincerely, Karene.

"It is not enough to conquer; one must learn to seduce." (Voltaire) - "Desire is the essence of a man." (Spinoza)

Evolution of Human Sexual Reproduction, Culture & Health. Possible Causes and Treatment for Males and Females, Clinics, Support

A Guide for Infertility Clinics: A Study of the Differences in Semen from Masturbation & Sexual Intercourse

From the website: 'In clinical programs of assisted reproduction involving infertile males, it is essential to obtain semen of maximum quality. To evaluate ways of achieving this objective, and to assess the fertilizing capacity of the sperm, six semen samples were collected from each of 38 infertile men via masturbation. Six more samples were then collected from each man at sexual intercourse using a semen collection device (SCD).
We confirmed that the volume of seminal plasma, total sperm count, sperm motility, and percentage of normal spermatozoa were significantly higher in samples collected at intercourse than masturbation, as reported previously. In addition, the markers of the secretory function of the prostate and the outcome of sperm function tests were significantly higher for the samples collected at intercourse.
There were no significant differences in the serum concentrations of gonadotropins, or in the serum or seminal plasma concentrations of testosterone, before or after masturbation or sexual intercourse. Therefore, the differences in prostatic secretory function and semen may not be attributed to differences in hormonal levels.
Semen collection during intercourse using an SCD appears to be the method of choice for selecting semen samples for artificial insemination.

Semen Collection Methods for Artificial Reproduction: Sexual Intercourse not Masturbation

Although masturbation is the standard method for the collection of a sperm sample, both for diagnostic and therapeutic purposes, other approaches have been described and assessed. Production of semen using specially designed condoms (Silastic seminal fluid collection device - SCD) has been shown to result in samples with better laboratory characteristics than samples obtained after masturbation or coitus interruptus. However, this has not resulted in a general acceptance and use of this approach, except in special circumstances where masturbation is impossible or unacceptable.
...The conclusion of all this data is should evidently be that, for reasons of artificial reproductive technology, masturbation as a method for semen collection should not be recommended, and be replaced by coitus with a SCD. ... An excellent alternative where masturbation is not possible or refused (due to religion). - J Gerris. Fertility Clinic, Department of Obstetrics Gynaecology Fertility, Middelheim Hospital, Lindendreef 1, 2020 Antwerp, Belgium

IVF & Infertility: Georgia Reproductive Specialists

From the website: 'It is the goal of our physicians and IVF laboratory team to provide you with the latest women's healthcare innovations to address infertility, polycystic ovaries, endometriosis, and pelvic pain treatment.'
Includes FAQ page, Infertility Research Studies, IVF Patient Manual, Feedback & Testimonials.

Read More: IVF & Infertility: Georgia Reproductive Specialists: Research, FAQ, Patient Testimonials


Analyse any human emotion, no matter how far it may be removed from the sphere of sex, and you are sure to discover somewhere the primal impulse, to which life owes its perpetuation.Analyse any human emotion, no matter how far it may be removed from the sphere of sex, and you are sure to discover somewhere the primal impulse, to which life owes its perpetuation. ... The primitive stages can always be re-established; the primitive mind is, in the fullest meaning of the word, imperishable. ... Mans most disagreeable habits and idiosyncrasies, his deceit, his cowardice, his lack of reverence, are engendered by his incomplete adjustment to a complicated civilisation. It is the result of the conflict between our instincts and our culture. (Sigmund Freud)

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Support an open honest discussion of human sexuality by sharing this knowledge.
Sexual Reproduction: Human Infertility: Possible Causes and Treatment for Males and Females

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