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South Africa’s sex business did not see any spike in activity during the soccer World Cup and the male patrons who participated in the trade practiced safe…

In the largest human study to date on the topic, researchers have uncovered evidence of the possible influence of human sex hormones on the structure and function of…

Among gay men in the United States, blacks are more likely than whites to believe that homosexuality is “wrong” - and these feelings might be contributing to the black…

U.S. teens are not as reckless as some people might think when it comes to sex, and they are much more likely to use condoms than people over 40,…

The United States apologized on Friday for an experiment conducted in the 1940s in which U.S. government medical researchers deliberately infected Guatemalan prison inmates with syphilis.

Secretary of State Hillary Clinton,…

There’s evolution at work when she wants to cuddle after sex (and he, well, doesn’t).

That’s the conclusion of a new study, “Sex Differences in Post-Coital Behaviors in Long-…

Nearly one in five gay and bisexual men in 21 major U.S. cities are infected with HIV, and nearly half of them do not know it,…

Researchers funded by the Medical Research Council (MRC) have uncovered an inherent difference in the way the genes of males or females can be ‘switched off’ or silenced in the…

Sexual problems appear to be more distressful to men after prostate-removal surgery than urinary problems do, a new long-term follow-up study shows.

The findings suggest that while men may…

Many women with low sex drives reported greater sexual satisfaction after taking a placebo, according to new psychology research from The University of Texas at Austin and Baylor…

Risky sexual behavior among members of a subset of the gay community is still adding to the spread of HIV. Research published in the open access journal…

Gender harassment – verbal and nonverbal behaviors that convey insulting, hostile and degrading attitudes to women – is just as distressing for women victims as sexual advances in the workplace. According to Emily Leskinen,…

Almost two-thirds of females attending a general urology practice reported that they suffered from sexual dysfunction, according to a paper in…

Gay and bisexual men enrolled in a long-term study of HIV who reported sexual abuse and social shaming in childhood experience psychosocial health problems later in…

More than 4 million new HIV infections could be prevented in eastern and southern Africa by 2025 if male circumcision rates were increased to 80 percent, researchers said…

Men who use condoms every time they have sex are less likely to harbor the virus that causes genital warts than those who are less consistent about protection, a…

A new study examining the relationship dynamics of gay male couples finds that couples make “sexual agreements” - rules about whether sex with outside partners is allowed…

Physicians who prescribe erectile dysfunction drugs for their male patients should be sure to discuss the importance of safer sex practices, even with older patients: that…

Mothers who drink alcohol during pregnancy may be damaging the fertility of their future sons, a study by Danish scientists said on Tuesday.

The researchers found that if mothers…

Bariatric surgery not only helps people lose weight, it can resolve or significantly improve female sexual dysfunction (FSD), a prevalent and complex condition that adversely affects women’s…

Scientists studying swingers - straight couples who regularly swap sexual partners and indulge in group sex at organized meeting - say they have higher rates of sexually transmitted infections (STIs)…

A pink sex pill offered little help to women and came with unacceptable risks, U.S. government advisers agreed on Friday, another setback in the search for a drug to…

For many middle-aged and elderly men, low libido, depressed mood and a lack of energy may just be the signs of normal aging - and not low testosterone levels.

That’s the…

Sex education should be taught to children from the age of five to give them the skills and confidence to delay sexual intimacy until they are…

Obese women have four times as many unplanned pregnancies as healthy-weight women despite having less sex, and obese men are more likely to have sexual diseases despite fewer partners,…