Search
for

    Glossary2D:4D ratio (finger length 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.

    Related Terms

    Learn

    1 / 1 results

    Research

    5 / 1000+ results

    Community Join

    5 / 518 results

      community Just had this wild thought come into my head.

      in Satire  403 upvotes   5 months ago
      The conversation is about the debate over the existence of Post-Finasteride Syndrome (PFS) and its symptoms, with some users skeptical about PFS and others discussing side effects like erectile dysfunction and gynecomastia from hair loss treatments like finasteride. Specific treatments mentioned include finasteride, viagra, and a joke about using a popsicle stick for erectile support.

      community My progress after 13 months on dutasteride and Minoxidil

      in Progress Pictures  678 upvotes   8 months ago
      A user shared their positive experience with hair regrowth after 13 months of using dutasteride and minoxidil, noting improved self-confidence and physical fitness. They reported noticeable results after 2 months, with significant improvement by 7-8 months, and no major side effects.