Sex

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.
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Animal Sex: How Tree Frogs Do it
A pair of red-eyed tree frogs (<em>Agalychnis callidryas</em>) mating in the wild.
October 16th, 2014
Not unlike humans, male tree frogs call on females to begin the mating game, and females prefer long calls.
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Pick Up the Mop, Guys: Egalitarian Couples Do Have Good Sex
Man sitting in kitchen with mop.
July 30th, 2014
Contrary to previous research, sharing the household chores won't kill your sex life. In modern-day marriages, egalitarian couples have just as much sex as those in which the wife shoulders the domestic load.
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Algae May Hold Key to Origin of the Sexes
algae with sex changes
July 8th, 2014
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.
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Men Who Make Virginity Pledges Struggle with Sex Once Married
Upset man having problem sitting on the bed with his girlfriend.
August 19th, 2014
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.
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That Woman in Red May Spur Female Jealousy
woman wearing red dress and looking in the mirror.
July 11th, 2014
Men like women in red, research has shown. But women? Not so much. A new study finds that women perceive a lady in red as a potential threat to their relationships, and see her as more interested in sex than women wearing other colors.
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For One Night Stands, Girth Matters
June 5th, 2014
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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New Porn Studies Journal Launches
man's hand on laptop with video playing
March 21st, 2014
A new journal devoted to the study of pornography launched today (March 21) with papers about the culture and content of porn. Researchers hope the journal will help pull the field of porn studies out of its infancy.
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Why Is Symmetry So Sexy? It Has Nothing to Do with Health
A woman's face, in close up
August 12th, 2014
People overwhelmingly prefer symmetrical faces to asymmetrical ones, leading to the hypothesis that symmetry is a sign of health. However, new research suggests that health and facial symmetry aren't linked at all.
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Popular Testosterone Therapy Lacks Evidence
The chemical structure of testosterone
July 8th, 2014
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?
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Are Wide-Hipped Women Promiscuous? Study Births a Controversy
a pregnant woman doing bridge pose in yoga
April 25th, 2014
A new study argues that women with wider hips have more one-night stands because they fear childbirth less. But anthropologists say the measurements and assumptions in the study call the findings into question.
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