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Progesterone Linked to Brain Structure Changes

MRI study finds stronger associations than estradiol across menstrual phases

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  • 1

    Study published in eBioMedicine explores hormonal impacts on brain structure.

  • 2

    32 healthy women were studied using MRI for structural imaging.

  • 3

    Progesterone showed leading associations with gray matter volume.

  • 4

    Significant changes noted between menstruation and the periovulatory phase.

  • 5

    Areas related to emotion and decision-making were impacted during menstruation.

  • 6

    Research highlights potential neuroplasticity linked to hormone receptor density.

  • 7

    Limitations include sample size and lack of luteal phase data.

Original Source(s)

Progesterone Linked to Brain Structure Changes

  • by Meg Barbor

  • March 30, 2026

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