HORMONAL

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Completed 1

Finger ratio may hint at origins of Double-Jointedness

Knowledge-focused Completed

This study looked at 180 young adults to see if the ratio of index to ring finger length (2D:4D) — a marker of prenatal hormone exposure — differs between people with and without joint hypermobility (being double-jointed). Researchers measured finger lengths and joint flexibility…

Matched conditions: HORMONAL

Sponsor: Nigde Omer Halisdemir University • Aim: Knowledge-focused

Last updated Apr 29, 2026 05:16 UTC

HORMONAL

Get alerted when new HORMONAL trials appear

Finger ratio may hint at origins of Double-Jointedness