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Index/Topics/Brain structure differences and sexual orientation

Brain structure differences and sexual orientation

Studies on the differences in brain structure between individuals with different sexual orientations.

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Jan 26, 2026
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You get born as gay or you become gay, scientifically?

Scientific evidence indicates is shaped by a complex mix of biological factors—genetics, prenatal hormones, maternal immune effects and neurodevelopmental differences—combined with non-shared (largely...

Jan 26, 2026
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What are the ethical and scientific critiques of using neuroanatomical differences to infer causes of sexual orientation?

Claims that explain sexual orientation rest on intriguing but inconsistent findings, small and confounded samples, and interpretive leaps from correlation to causation; scholars repeatedly urge cautio...