While I prefer for each entry in the Science of Sex archive to be a deeper dive into a specific topic, I’ll be taking a break from that this month. There’s simply so many articles that have recently come across my dashboard that I want to write about them. We’re always expanding our knowledge about sexuality, gender, and related topics, but this summer ushered in a flurry of news that really exemplifies this. It’s so exciting!
Let’s jump in. Note that relevant links are included in each section and not at the end of this post per usual.
The most recent of those articles is one about how genetics can explain same-sex behavior. Researchers concluded that there is no one “gay gene” but that several genes do connect with homosexual behavior. Furthermore, gay men and women (presumably cisgender) are affected by different genes. The survey has a few week spots including focusing on behavior versus attraction, but it’s fascinating nonetheless.
Another discovery that’s gotten a lot of media attention is how scientists isolated a gene that, when activated, would create sperm that resulted in male offspring. They successfully applied this to the sperm of mice to produce a higher ratio of male offspring than usual. They believe this applies to all mammals.
In a positive turn for preventing HIV transmission, one studies found that repeated exposure to semen can change vaginal tissues and actually make a ciswoman less susceptible to contracting the virus.
And in other STI news, there could be a chlamydia vaccine on the way! A study of the effect of the drugs on people has been found to be safe. This is good news for the 100+ million people who contract the STI globally each year.
A team looked into why men send dick pics, finding that men who do tend to be more narcissistic. However, they determined that “he unsolicited dick pic phenomenon cannot be viewed solely as a sexist campaign, nor as a positive outlet for sexuality; instead, cases must be considered on an individual basis.”
After surveying over 2,000 polyamorous people, researchers discovered they were less likely to be religious and more likely to support political third parties. While poly folks were more likely to be nonbinary or bisexual and pansexual, they were not more likely to be gay or lesbian than monogamous people. Poly people were also more likely to make less than $40,000 annually. Research Justin Lehmiller states that,
While our results do not come from representative samples, they suggest that the stereotype of polyamorists as young, White, wealthy liberals doesn’t necessarily match up with reality. Indeed, compared to monogamists, polyamorists were not any younger, Whiter, wealthier, or more likely to identify with the Democratic party.
Surprisingly, women who were married multiple times have more surviving offspring than men who do found researchers after analyzing data about the community of Pimbwe in Tanzania. This seemingly contradicts the idea that men achieve greater reproductive success by having a variety of partners.
According to his recently released book, ADHD After Darker, Dr. Ari Tuckman has found that a woman who has ADHD have sex 25% more often than when the man in a couple has ADHD due to ADHD’s correlation with sexual eagerness. This can lead to greater sexual satisfaction than when the man has ADHD and this leads to a great discrepancy in sex drive.
Finally, one last study finds that women who take hormone replacement therapy for menopause relief have an increased risk of breast cancer, even more than a decade after they cease the medication. The longer a woman is on HRT, the greater her risk for breast cancer. This is potentially concerning as estrogen and other hormones have been prescribed to help women cope with the symptoms of menopause and to enable them to continue enjoying sex. There was not a similar risk for women who were obese, however.
