Researchers have identified 371 genes, eleven of which were sex-specific, linked to the timing of when a person first has sex and the point of life they are most likely to become parents.
Poor quality sleep can lead to sexual dysfunction in women, a new study reports.
A small scale study reveals women's sexual desire and frequency of intercourse has increased during the coronavirus pandemic, but they report the quality of their sex life has decreased.
Men evaluated the scent of sexually aroused women as more attractive and expressed an increase in their sexual motivations. Findings suggest the chemical signal of scent alone can elicit a sexual response in men.
A shot of the reproductive hormone kisspeptin enhances brain activity in response to olfactory and visual cues of attraction in men. The findings reveal a previously undescribed attraction pathway in humans activated by the hormone and identify kisspeptin signaling as a potential therapeutic pathway for psychosexual and reproductive disorders.
Darcin, a sex pheromone named after Jane Austen's famous Mr. Darcy, alters cells in the brain's emotional center of female mice, giving them the power to assess sexual readiness and help with mate selection.
Researchers report up to 25% of same-sex behaviors are associated with genetic variants. The study identified five new genes associated with sexual behavior. They report there is no one single gene linked to same-sex sexual behavior or orientation, but numerous genes, as well as other factors which contribute. Researchers emphasize the markers may be unreliable in predicting same-sex behavior but may influence the likelihood for specific relationship choices.
Half of all people who practice sexual swinging use recreational drugs to enhance their experience. Researchers report women are more likely to use drugs than either straight or bisexual men, increasing the risk of them participating in unprotected sex and contracting a sexually transmitted infection.
Exposure to allergic inflammation, while in utero, increased mast cell and microglia activation, leading to masculinization of dendritic spine density in the preoptic area of females. During adulthood, females exposed to allergic inflammation showed an increase in more masculine behaviors.
ESP22, a substance found in a baby's tears, makes female mice more likely to reject male sexual advances, researchers report.
According to researchers, mast cells play an important role in determining whether an animal's sexual behavior will be more typical of a male or a female as they mature. Chemically stimulating mast cells in newborn female mice resulted in them acting more like males as adults.