For a man, the odds of being gay are related to:

Name: For a man, the odds of being gay are related to:
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Question

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Research suggests that a man's odds of being gay increase with the number of older brothers he has. This phenomenon is often explained by the "fraternal birth order effect," which proposes that a mother's immune response to male fetuses increases with each pregnancy, potentially influencing the sexual orientation of subsequent sons.

For a Man, the Odds of Being Gay Are Related