For questions regarding sexual expression, sexual orientation, and biological bases of sexual behaviors

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69
votes
5answers
12k views

Why do humans have sex in private?

Human couples usually have sex in private, hidden not only from predators, but also - other humans. It is unlike behavior of most species, including our relatives: bonobos, chimpanzees and gorillas. ...
5
votes
2answers
7k views

How important is eye contact for attraction between a man and woman?

How important is eye contact for creating/inducing attraction & showing showing "confidence" towards them? What is the optimal eye locking duration between 2 persons for inducing this attraction?
15
votes
2answers
2k views

What is the effect of viewing pornography on children?

It is generally accepted that porn shouldn't be seen by children, and we even sometimes punish parents who fail to stop their children from finding porn. How much are these laws based in science? Can ...
9
votes
1answer
1k views

Has anyone formally tested Josh Pellicer's theory on human sexual behavior?

I read Josh Pellicer's book titled "Tao of Badass." He discusses the sexual behavior of men and women and how they interact during the dating process. However, I have been unable to find any ...
4
votes
1answer
1k views

What does scientific research say about the relationship between penis size and attractiveness?

Pop-culture often equates a larger penis with a more attractive penis. Is there any scientific research examining the relationship between penis size and attractiveness ratings? What are the reasons ...
3
votes
2answers
4k views

How long does physical attraction typically last in a permanent relationship?

How long, on average (and with as much other statistical data, e.g. standard deviation, as possible) does physical attraction between male and female in a permanent relationship last? I believe this ...
6
votes
1answer
162 views

Are there empirical studies showing that one sex is more sexually selective than the other?

Initial research: I've found papers by Clark and Hatfield (1989) and Buss and Schmidt (1993) that seem to lend support to the idea of heterosexual females being more selective than heterosexual males. ...
6
votes
1answer
366 views

Transsexuality in animals other than humans?

In some research papers, transsexuality is correlated with measurable differences in brain structure. For example: Zhou et al. (1995) inspected the central subdivision of the bed nucleus of the ...
1
vote
1answer
156 views

How objective are scientific measures of paraphilia?

Paraphilia (from Greek para = beside and -philia = friendship, meaning love) describes the experience of intense sexual arousal to highly atypical objects, situations, or individuals. Which ...
6
votes
1answer
276 views

Is paraphilia a disorder?

There has been some confusion in recent questions about the term paraphilia. In most questions and answers, including my own, paraphilias have been seen as disorders that might require treatment. But ...
4
votes
1answer
840 views

Is mutually consensual BDSM a symptom of a sick mind or an expression of freedom from social constraints?

BDSM an acronym for bondage and discipline; dominant and submissive; sado-masochism; slave and master. Assume such a relationships or sexual practices are genuinely mutually consenting; and by ...
4
votes
1answer
328 views

Are individuals who are generally jealous more likely to experience sexual jealousy?

Some people are just jealous of many things they perceive others to possess. Materially or as part of that person. Is a person who is prone to jealousy more likely to be jealous in romantic ...
2
votes
1answer
223 views

How does masturbation influence your brain and dreams?

What exactly changes in your brain the moment after you've finished masturbating? Could there be any effect neuro-psychologically on dreams or lucid dreaming?