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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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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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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Cooperation and Conflict in Sex, Reproduction and Family Life (Op-Ed)
February 6th, 2014
Few acts in the living world involve more intimate cooperation than sex. And that’s only conception. In long-lived species, especially our own, it can take decades of hard cooperative work to raise a family.
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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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A Complex Cocktail: Alcohol, Sex and Cute Monogamous Mammals (Op-Ed)
Drinks on a tray
April 10th, 2014
How does alcohol consumption affect romantic life? Let me count the ways.
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Sultan of Schwing: How Moroccan Ruler Could Sire 1,000 Kids Revealed
Photographic reproduction of artwork showing Sultan Moulay of Morocco.
February 25th, 2014
Sultan Moulay Ismaïl of Morocco, "The Bloodthirsty," reputedly sired perhaps more than a 1,000 kids. Now computer simulations suggest this could have been possible if the ruler had sex about once a day for 32 years.
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