Comment on Facebook or share on Social Networks

 
  Instagram Profile - Karene (Sexual Evolution)

Karene

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)

Premature Ejaculation
Evolution & Male Sexual Health Studies, Prevention, Control Methods, Masturbation, Frequency of Orgasm & Intercourse, Penis Exercises

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).

From the essay: 'As the duration of coitus increases, the likelihood of female orgasm also increases, and it has been theorized that the vaginal and uterine contractions that accompany orgasm in females may be conducive to sperm uptake, transport, and retention (Baker and Bellis, 1993). From the standpoint of sperm competition, another benefit of extended periods of copulation would be more effective displacement of rival semen from the female reproductive tract. Indeed, premature ejaculation can be thought of as a failure to achieve semen displacement.'

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



 


 


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)






Related Pages

Male Sexuality: Evolution, Health & Masculinity
Circumcision of Penis / Foreskin: Health, Religion & Culture Penis Enlargement: Evolution, Culture & Male Dominance, Drugs, Exercises
Ejaculation: Male Reproductive System, Semen, Health Benefits Penis Size: Studies & Statistics on Big, Small, Average
Erectile Dysfunction: Information, Treatment, Causes, Drugs Prostate: Health Studies & Information, Massage
Erections: Biology, Function, Sexual Arousal, Puberty Prostate Cancer: Symptoms, Treatment, Ejaculation as Prevention
Foreskin: Function, Anatomy, Pictures Premature Ejaculation: Information, Prevention, Control Methods
Health: Sexual Health of Men: Evolution, Problems, Studies Sperm: Evolution & Competition, Function, Health
Masturbation in Males: Techniques and Tips Testicles & Scrotum: Biology, Function, Testicular Cancer
Models: Masculine Beauty, Pictures of Male Nudes, Celebrities Testosterone: Androgens, Declining Levels, Emotions, Violence
Naked Men: Male Erotic Art, Renaissance Paintings, Anatomy Pictures Viagra: Drugs, Studies & Research on Erectile Dysfunction
Penis: Anatomy, Human Reproduction, Erection, Orgasm  





Create some good Sexual Karma - Share this Knowledge - Thanks!










Support an open honest discussion of human sexuality by sharing this knowledge.
https://www.sexualevolution.org/premature-ejaculation.htm
Male Sexual Health: Premature Ejaculation. Prevention Control Methods, Masturbation, Intercourse, Penis Exercises


Site Map - Banners - Bibliography / Reference Books - Reasons for this Sexuality Study - Legal Disclaimer & Privacy Policy - Protect Children Online
Association of Sites Advocating Child Protection (ASACP) Family Online Safety Institute (FOSI)



Copyright 1997 - 2018
We support 'Fair Use' of these pages for Academic & Non Commercial use.
You are welcome to use images and text, but please reference them with a link to relevant web page on this site. Thanks!

Creative Commons License
The free, unhampered exchange of ideas and scientific conclusions is necessary for the sound development of science, as it is in all spheres of cultural life. ... Only the individual can think, and thereby create new values for society, nay, even set up new moral standards to which the life of the community conforms.
(Albert Einstein)