Sexual orientation
There is considerably more evidence supporting innate causes of sexual orientation than learned ones, especially for males. This evidence includes the cross-cultural … See more

Like other mammals, humans are primarily grouped into either the male or female sex.
The biological … See more

Child sexuality
Until Sigmund Freud published his Three Essays on the Theory of Sexuality in 1905, children were often regarded as asexual, having no sexuality until later development. Sigmund Freud was one of the first … See more

General activities and health
In humans, sexual intercourse has been shown to have health benefits, such as an improved sense of … See more

As one form of behavior, the psychological aspects of sexual expression have been studied in the context of emotional involvement, gender … See more

Human sexuality can be understood as part of the social life of humans, which is governed by implied rules of behavior and the status quo. This … See more

In some religions, sexual behavior is regarded as primarily spiritual. In others it is treated as primarily physical. Some hold that sexual behavior is only spiritual within certain kinds of … See more