All in our heads?
The science of sex
The brain is often the first place modern researchers look at to find out what is going on with the body. The results can throw up surprises -- although scientists are in no doubt that the brain is the primary sex organ for both men and women.
Emory University in Atlanta, USA, carried out brain scans on people of both gender as they looked at sexually explicit images.
They also tracked the eye movements of their subjects, to see what exactly they zoned in on reflexively when they looked at the pictures.
The scientists expected that women would focus on faces, and men on genitals.
They were wrong.
Men looked at the faces more, and both sexes focused on the genitals in equal measure.
If there is a gap between how the genders experience desire, it's when, not if, women want sex.
Various studies have concluded that women do fantasise about sex, they initiate sex with their partners and flirt with the intention -- subconscious or not -- to have sex at all times of the month, but they are more likely to do so at the time of ovulation, ie, at the time of ultimate fertility.