WHAT percent of American men are gay? This question is notoriously difficult to answer. Historical estimates range from about 2 percent to 10 percent. But somewhere in the exabytes of data that human beings create every day are answers to even the most challenging questions. Using surveys, social networks, pornographic searches and dating sites, I recently studied evidence on the number of gay men.
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His Straight Cis Male Husband Isn't Into the Idea of Having Gay Sex With Him Once He Transitions
A study of gay men in the US has found fresh evidence that male sexual orientation is influenced by genes. Scientists tested the DNA of gay men and found that genes on at least two chromosomes affected whether a man was gay or straight. A region of the X chromosome called Xq28 had some impact on men's sexual behaviour — though scientists have no idea which of the many genes in the region are involved, nor how many lie elsewhere in the genome. Another stretch of DNA on chromosome 8 also played a role in male sexual orientation — though again the precise mechanism is unclear. Researchers have speculated in the past that genes linked to homosexuality in men may have survived evolution because they happened to make women who carried them more fertile.
Male sexual orientation influenced by genes, study shows
Men who have sex with men MSM , also known as males who have sex with males , are male persons who engage in sexual activity with members of the same sex, regardless of how they identify themselves. The term MSM was created in the s by epidemiologists to study the spread of disease among men who have sex with men, regardless of identity. It does not describe any specific sexual activity, and which activities are covered by the term depends on context. First, it was pursued by epidemiologists seeking behavioral categories that would offer better analytical concepts for the study of disease-risk than identity-based categories such as "gay", " bisexual ", or "straight" , because a man who self-identifies as gay or bisexual is not necessarily sexually active with men, and someone who identifies as straight might be sexually active with men.
Between 2 and 11 percent of human adults report experiencing some homosexual feelings, though the figure varies widely depending on the survey. Homosexuality exists across cultures and even throughout the animal kingdom, as the authors of a mammoth new review paper on homosexuality write. Between 6 and 10 percent of rams prefer to mount other rams, not ewes. Certain groups of female Japanese monkeys prefer the company of other females:.