LiveScience Topic:
Science of Sex

Here's what is known about human sex and sexuality in the physical, mental and emotional realms. LiveScience examines the latest psychological, biological and sociological studies on sex, ranging from dating and mating, to flirting and cheating, to birth control and STDs.

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Men who are circumcised may have a lower risk o...
Condom use errors and failure rates.
Failing to use a condom during all of intercour...
Some people with severe allergies can experience an allergic reaction after kissing.
Valentine's Day hasn't always been all chocolate and roses.
Carving your beloved's initials into a tree is old fashioned. Here are some grand gestures of affection that have a geeky science twist.
Lovers in the future can expect distance-touch technology, virtual dates and HDTV of their partners' faces.
Dating sites as psychology experiments, a whole new field for 40-somethings and other love trends of the future.
Dating sites as psychology experiments, a whole new field for 40-somethings and other love trends of the future.
Lovers in the future can expect distance-touch technology, virtual dates and HDTV of their partners' faces.
Valentines' Day is a multi-billion-dollar business for American florists and restauranteurs.
People in the throes of romance may lash out at innocent bystanders.
Men become more financially impulsive when they believe women are scarce.
From vibrators to bestiality, boy were our cheeks red.
Immunity to a virus they've never heard of doesn't send teens into the sack.
Bisexual women are more likely to be high-risk for depression, stress and alcohol abuse than bisexual men, a new study shows.
When a male fruit fly courts his potential mate, his song activates her immune system.
The media would make us believe the answer is "no."
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