Those Fucking Hormones!
Lust is driven by the desire for sexual gratification.
The evolutionary basis for this stems from our need
to reproduce, a need shared among all living things.
Through reproduction, organisms pass on their genes,
thus contributing to the perpetuation of their species.
The hypothalamus of the brain plays a big role in this,
stimulating the production of the sex hormones
testosterone and estrogen from the testes and ovaries.
While these chemicals are often stereotyped as being male
and female, both play a role in men and women.
Testosterone increases libido in just about everyone.
The effects are less pronounced with estrogen but
some women report being more sexually motivated around
the time they ovulate, when estrogen levels are highest.
Women in Lust