Introduction / Summary (2010): Hello and welcome to our Sexuality pages. The video provides a good introduction which we think you will enjoy!
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. We have also just added a Sex Questions and Answers section - so ask a question, we try to reply within 48 hours.

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).

About this Philosophy Website on Truth and Reality: We are listed as one of the top Philosophy Websites on the Internet with around 600,000 page views each week. The central thesis of philosophy is that we must know the truth to act wisely and truth is founded on a correct understanding of physical reality.
Clearly people have a strong sexual instinct due to our evolution and survival as a species. However, our planet faces many serious environmental problems, thus our survival now depends on a true understanding of our place in nature, as a way of better protecting life on earth. Truth and reality are beautiful subjects which are profoundly important to our future survival - they are the source of wisdom, the foundation for everything you see and experience in the universe!

Introduction / Summary to this Physics Philosophy Metaphysics of Space Website on Truth and Reality / The Wave Structure of Matter (please read first!)Sincerely,
Karene Howie - Email - Nice letters we receive - Share this Knowledge - Add Comment

In a time of universal deceit - telling the truth is a revolutionary act. (George Orwell)
You must be the change you wish to see in the world. (Mohandas Gandhi)
All that is necessary for evil to succeed is for good men to do nothing. (Edmund Burke)
Hell is Truth Seen Too Late. (Thomas Hobbes)

On Male Ejaculation, Semen & the Penis
Evolution & Sexual Health, Human Reproductive Systems, Testicles

Evolution, Human Reproduction & Fertilization: Sperm Competition & the Penis

A very interesting essay from the journal of Evolutionary Psychology on sperm competition and its role in shaping the human penis, (size, length, width, forceful ejaculation), evolutionary strategies for successful fertilization i.e. semen displacement and coagulation. On sexual intercourse and evolutionary benefits of deep penis thrusting, function of the foreskin and effects of circumcision, premature ejaculation, female reproductive strategies i.e. copulation with multiple partners, human sexual behaviour and wife rape (males having sex with their partner if suspecting them of infidelity).

Read More: Evolution, Human Reproduction & Fertilization: Sperm Competition, Semen Displacement & Penis


Male Orgasm / Ejaculation of Semen

An essay on male sexuality which describes the causes and signs of sexual arousal (complex interaction of physical and phychological) followed by information on erections and male orgasm / ejaculation.

From the essay: 'As the point of orgasm approaches, pre-ejaculate production will normally stop, and the hole in the tip of the penis becomes slit-like. The testicles become hard and are drawn up near the body in preparation. Breathing becomes heavier, and there may be involuntary contractions of major muscles (convulsions) throughout the body.
Finally, the psychological and physical pressure to ejaculate is released in a series of muscular contractions, usually about 8 major contractions spaced a second or so apart, followed perhaps by several smaller ones that can last 45 seconds or so. There is a wide variation in semen production, but about 60 percent on average, comes from glands called the seminal vesicles, whereas 38 % comes from the prostate, with the remainder from glands such as the Cowper's.

http://www.whitelotuseast.com/MaleSexuality.htm


Whats in Semen: Spit or Swallow?

Obviously, semen contains spermatozoa, but sperm accounts for only a small percentage of spunk. Cum is 90% seminal fluid, which is composed of dozens of chemical components. The base of seminal fluid is primarily fructose (sugar) and proteins, with many other trace minerals and substances.
Healthy semen (from a well nourished, disease free male) may in fact be not only safe to eat, but actually good for you. Semen is a source of highly concentrated, high-quality protein amd also contains high concentrations of some minerals, such as zinc, and trace amounts of calcium and magnesium.

Read More: Whats in Semen: Spit or Swallow?


Study Shows Health Benefits of Swallowing Semen & Vaginal Absorption

A recent study found that women who gave their men oral sex, and swallowed, had a lower risk of preeclampsia, the dangerously high blood pressure that sometimes accompanies pregnancy.

'The present study shows that oral sex and swallowing sperm is correlated with a diminished occurrence of preeclampsia,' said the Dutch authors.

A study of college students at the State University of New York in Albany suggests that semen acts as an antidepressant. Females in the study who were having sex without condoms had fewer signs of depression than women who used condoms or abstained from sex.

'These data are consistent with the possibility that semen may antagonize depressive symptoms and evidence which shows that the vagina absorbs a number of components of semen that can be detected in the bloodstream within a few hours of administration.'

Read More: Not Just Good but Good for You - Studies on the Health Benefits of Sex


Semen Collection from Sexual Intercourse not Masturbation: Methods for Artificial Reproduction

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.

Read More: Semen Collection from Sexual Intercourse not Masturbation: Methods for Artificial Reproduction


Masturbation vs Sexual Intercourse: A Study of the Differences in Semen. A Guide for Infertility Clinics

Six semen samples were collected from each of 38 infertile men via masturbation and sexual intercourse using a semen collection device (SCD).
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. In addition, the markers of the secretory function of the prostate and the outcome of sperm function tests were also significantly higher.

Read More: Masturbation vs Sexual Intercourse: Study of the Differences in Semen. A Guide for Infertility Clinics


 

 



 

On our Biological and Cultural Sexual Evolution.This Page Title: 'Evolution & Sexual Health: Male Ejaculation. Human Reproductive System, Semen, Orgasm, Penis, Testicles'.
Want to be Involved? Join us in this research, which provides an excellent opportunity to present to the world the latest knowledge about the thing we all find most interesting - sex! The work will not just benefit humanity, it will profoundly enhance your own sexuality as you learn more about our complex and diverse sexual evolution.
We seek help in finding the latest scientific (evolutionary) research on our biological and cultural sexual evolution and distributing content (overviews / summaries) to relevant pages.
This site is well respected. We are listed as the Top Philosophy Website on the Internet with around 600,000 page views each week. So your contributions will be seen and read, and will be providing humanity with a great source of wisdom about a very important subject (that currently suffers due to cultural / religious myths).

If you would like to be involved (or have comments about this website) please write to us using the form lower on this page. Many thanks! Karene

 


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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Sexuality Questions and Answers

Ask me a question about Human Sexuality and I will try to answer you!

Hi Everyone,
We get a lot of people writing to us asking questions about sex. So we have added an 'Ask a Question' feature to our sexuality pages - to help share questions and answers as a way of helping one another.
You can use Facebook Connect or Google Friendconnect (below) to add your questions / comments. We try to reply within 48 hours - the best questions and answers will be added to the page.
Thanks.
Karene (January, 2010)


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Erectile Dysfunction: Information, Treatment, Causes, Drugs Prostate: Health Studies & Information, Massage
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Penis: Anatomy, Human Reproduction, Erection, Orgasm  


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