He noted that environmental factors - including the level of exposure to certain hormones in the womb - also play a role in molding male sexuality. "It is quite possible that there are several influences on forming a homosexual orientation," said Gerulf Rieger, a sexual orientation researcher at Cornell University. Of course, no single factor can account for the varied array of sexual orientations that exist, in men as well as in women. The new study will appear in an upcoming issue of the Journal of Sexual Medicine. Attracting and choosing from the best males enables these women to produce more offspring, he noted. "In other words, compared to the others, perfect for a male," Camperio Ciani said. Turns out, the moms and aunts of gay men have an advantage over the moms and aunts of straight men for several reasons: They are more fertile, displaying fewer gynecological disorders or complications during pregnancy they are more extroverted, as well as funnier, happier and more relaxed and they have fewer family problems and social anxieties. The androphilic pattern that we found is about females who increase their reproductive value to attract the best males," Camperio Ciani told Life's Little Mysteries. "High fecundity, that means having more babies, is not about pleasure in sex, nor is it about promiscuity. Rather than making women more attracted to men, the "gay man gene" appears to make these women more attractive to men. But after investigating the characteristics of 161 female maternal relatives of homosexual and heterosexual men, the researchers have adjusted their hypothesis. Previously, the Italian researchers suggested that the "gay man gene" might simply increase androphilia, or attraction to men, thereby making the males who possess the gene homosexual and the females who possess it more promiscuous. The agency says asking about sexual behavior rather than sexual orientation will allow it to more reliably assess the risk of infections such as HIV.Ĭatherine Lewis, a spokeswoman for Canadian Blood Services, said the criteria change is “science-informed“ and allows the agency to be more inclusive about who can donate while still ensuring a safe blood supply.But how might the "gay man gene" make females more reproductively successful? A new study by Camperio Ciani and his team addresses the question for the first time. If they have, they will need to wait three months after such activity before donating blood. Those who say yes will be asked if they have engaged in higher-sisk sex.
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30, potential donors will be asked if they have had new or multiple sexual partners in the last previous months, no matter their gender or sexual orientation.
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The blood service asked Health Canada to allow it to scrap questions about gender or sexuality, and instead base screening on higher-risk sexual behavior such as anal sex. Health Canada approved the request by Canadian Blood Services to end the policy that restricts homosexuals from donating blood for three months after engaging in gay sex. Trudeau said his government spent C$5 million dollars (US$3.9 million) on research into the safety aspects of changing the blood donation rules and multiple scientific reports showed “our blood supply will continue to be safe.”