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Index/Topics/Sexual behavior and genital measures

Sexual behavior and genital measures

The relationship between sexual behavior and genital measures, including the use of biomarkers and clinical measures to validate self-reported data.

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2 results
Feb 6, 2026

What large-scale studies exist measuring refractory period duration by age group?

Large-scale, age-stratified empirical studies that directly measure human sexual duration are essentially absent from the peer‑reviewed record; authoritative reviews describe a “paucity of data” and w...

Feb 6, 2026

Can the avg penis size of a ethnicity be correlated to the avg vaginal size of the same ethnicity

There is no robust, conclusive evidence that correlates with average vaginal size by the same ethnicity; the literature on penile dimensions is larger and suggests only small, overlapping differences ...