Fewer teens and young adults are having sex, a government survey shows, and theories abound for why they're doing it less. Experts say this generation may be more cautious than their predecessors, more aware of sexually spread ...
Mar 03, 2011
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(PhysOrg.com) -- The duration of sexual intercourse differs wildly across the animal kingdom. Now researchers seeking to understand the evolutionary significance of lengthy copulation duration have found evidence ...
Dec 09, 2011
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We've heard the clichés: "It was love at first sight," "It's inner beauty that truly matters," and "Opposites attract." But what's really at work in selecting a romantic or sexual partner?
Feb 08, 2013
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(PhysOrg.com) -- Amyloid protein structures are best known for the troubles they pose in the brains of Alzheimer's patients. Now researchers are trying to exploit their presence in a very different place - ...
Sep 28, 2010
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(PhysOrg.com) -- As a new mother herself, Brenda Lohman admits to being shocked by the results of a new study she co-authored. It found that among nearly 1,000 low-income families in three major cities, one in four children ...
Aug 13, 2009
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Sperm, and not just the fluid it bathes in, can transmit HIV to macrophages, T cells, and dendritic cells (DCs), report a team led by Ana Ceballos at the University of Buenos Aires in Argentina. By infecting ...
Oct 26, 2009
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In Sub-Saharan Africa, women who are empowered to make household decisions tend to have sex less often. This is according to a study conducted by researchers at the Johns Hopkins Bloomberg School of Public Health. They examined ...
Sep 21, 2011
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Russian or Soviet cosmonauts never had sex in space in the 50 years of human exploration of the cosmos. And that's official, according to a Russian expert. As for Americans, well, you'd better ask them.
Apr 22, 2011
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With sexual activity among adolescents in the United States resulting in over 750,000 teenage pregnancies each year and reports of up to 25 percent of all female adolescents in the US having sexually transmitted infections, ...
Feb 24, 2009
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Post-sex blues is not a sexual behaviour commonly discussed, but a Queensland University of Technology (QUT) study of more than 200 young women has found one in three (32.9 per cent) had experienced the phenomenon at some ...
Mar 30, 2011
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(AP) -- Nearly one-tenth of sexually active New York City high school students say they have had at least one same-sex partner, and teens who say they've had sexual contact with both sexes report higher-than-average rates ...
Oct 25, 2010
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In the brain, dopamine is involved in a number of processes that control the way we behave. If an action results in the substance being released, we are more likely to repeat the action. This applies to actions such as eating, ...
Oct 20, 2010
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Girls are hitting puberty earlier and earlier. One recent study found that more than 10 percent of American girls have some breast development by age 7. This news has upset many people, but it may make evolutionary sense ...
Aug 31, 2010
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An investigation published in The Journal of Sexual Medicine has found that male partners who express greater support, attention and sympathy to women's chronic vulvovaginal pain may trigger more pain, but also increase sexual ...
Sep 09, 2010
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(PhysOrg.com) -- A team of researchers from the United States and Europe has published new evidence supporting the use of ulipristal acetate as an effective alternative to levonorgestrel (marketed as Plan B®) for emergency ...
Feb 22, 2010
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