The Ebola virus can remain in semen for longer than previously thought, and men who survive the disease should always use a condom during sex, the CDC says.
Sex and sexuality is about more than just two people, a bed, and a few aphrodisiacs. Scientists study why humans have sexual intercourse (it is good for you and good for the species) and how sex is driven by evolution, genes, emotions and more. There is also much to learn about the differing roles of men and women in the whole mating game. Yes, there's lots of science to explore. Not that an aphrodisiac isn't more fun.
Erectile dysfunction (ED) is the inability to get or keep an erection. It is caused when penile tissues do not fill up with blood.
Changes in hormonal contraceptive use during a marriage could affect a woman's satisfaction, according to a new study that followed married couples for months to years.
New research shows how external genitals arose from very different starting places for reptiles and mammals.
Snake sex involves mating balls, battles similar to arm-wrestling and, sometimes, asexual reproduction.
Not unlike humans, male tree frogs call on females to begin the mating game, and females prefer long calls.
Though men who pledge to remain chaste until marriage get strong social support from Christian networks prior to marriage, they are left in the dark once they tie the knot.
Testosterone replacement therapies promise more muscle mass, more sex drive, more energy and maybe even that extra vigor in your golf swing, but at what cost?
A single gene that controls male and female sexes in one organism evolved from a simpler precursor gene in a unicellular algae, new research suggests.
For one night stands, size does matter, but it's not penis length that women are concerned about — it's girth, a new study suggests.
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