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  • Testosterone Therapy Is Trending—But Is It Right For You?
    Women’s Health & Hormones

    Testosterone Therapy Is Trending—But Is It Right For You?

    Hormones, Lab Testing, Longevity, Women’s Health
    Robin Berzin MD
    October 28, 2025

    Most women benefit from testosterone therapy as part of a thoughtful HRT plan. It benefits mood, libido, energy, muscle, and bone health. Read more

  • The Cortisol Reset Every Woman Needs
    Women’s Health & Hormones

    The Cortisol Reset Every Woman Needs

    Hormones, Mental Health, Women’s Health
    Robin Berzin MD
    December 9, 2025

    The goal is to cultivate a healthy cortisol reset rhythm—high when you need it, low when you don’t.The problem is chronic cortisol. Read more

  • Fertility Over 35: 8 Evidence-Backed Levers
    Fertility & Parenting

    Fertility Over 35: 8 Evidence-Backed Levers

    Blood Sugar & Metabolism, Hormones, Lab Testing, Women’s Health
    Robin Berzin MD
    January 29, 2026

    I’ve identified 8 evidence-backed fertility levers for women over 35 — blood sugar, thyroid, stress, autoimmunity, toxins, and more — that most OBs never Read more

  • Why GLP-1s Underperform Without Estrogen
    Women’s Health & Hormones

    Why GLP-1s Underperform Without Estrogen

    Blood Sugar & Metabolism, Hormones, Supplements, Women’s Health
    Robin Berzin MD
    February 26, 2026

    I had a patient gain 50 lbs in 6 months. GLP-1 alone did nothing. Adding HRT changed everything. Here’s the science behind why estrogen makes GLP-1s work. Read more

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Robin Berzin MD

Robin Berzin MD is the founder of Parsley Health and your guide on the journey to being well.

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