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    Glossary2D:4D ratio (digit ratio)

    relative length of index to ring finger

    The 2D:4D ratio, also known as the digit ratio, refers to the comparative length of the second digit (index finger) to the fourth digit (ring finger). This ratio is often used as a biomarker for prenatal hormone exposure, with a lower ratio (shorter index finger relative to the ring finger) typically indicating higher exposure to testosterone, and a higher ratio indicating higher exposure to estrogen. This measure has been linked to various biological and behavioral traits, including susceptibility to certain diseases and conditions.

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      in Progress Pictures  255 upvotes 9 months ago
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      community Why I deleted my YouTube channel Part I

      in Update  118 upvotes 3 years ago
      A YouTuber named Kevin, also known as Rider_Of_Roach, who deleted his YouTube channel due to personal attacks and controversy surrounding his views on hair loss treatments. He advocated for FDA-approved treatments like finasteride and minoxidil but faced backlash from those who disagreed with him. The conversation also discusses his past trolling behavior and a lawsuit he filed against a website that published false information about him. Despite some disagreements, many viewers appreciated his research-based content and hope to see him return in the future.

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      in Update  47 upvotes 2 years ago
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