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  • How Do You Actually Know Your Heart Is Healthy?
    Longevity & Metabolic Health

    How Do You Actually Know Your Heart Is Healthy?

    Blood Sugar & Metabolism, Exercise, Lab Testing, Longevity
    Robin Berzin MD
    October 7, 2025

    Let’s stop waiting to measure heart health until there’s already damage Read more

  • Forget Weight—Muscle Mass Is the Real Longevity Metric.
    Longevity & Metabolic Health

    Forget Weight—Muscle Mass Is the Real Longevity Metric.

    Blood Sugar & Metabolism, Exercise, Longevity, Women’s Health
    Robin Berzin MD
    November 4, 2025

    We’ve all been trained to chase a lower number on the scale. The truth? Weight is the wrong metric for healthy aging. Build muscle mass. Read more

  • What a CGM Can Tell You About Your Aging Velocity
    Longevity & Metabolic Health

    What a CGM Can Tell You About Your Aging Velocity

    Blood Sugar & Metabolism, Lab Testing, Longevity
    Robin Berzin MD
    November 25, 2025

    Energy, bloating, brain fog and weight gain are all tied to blood sugar. So is aging velocity. A CGM can help you optimize your longevity. Read more

  • Is Sleep Consistency the Most Overlooked Lever of Longevity?
    Longevity & Metabolic Health

    Is Sleep Consistency the Most Overlooked Lever of Longevity?

    Blood Sugar & Metabolism, Longevity, Sleep
    Robin Berzin MD
    December 2, 2025

    Most sleep advice focuses on quantity. For women trying to improve metabolic health and reduce inflammation, sleep consistency matters more. Read more

  • If You Only Fix One Thing for Longevity, Make It Your Mitochondria.
    Longevity & Metabolic Health

    If You Only Fix One Thing for Longevity, Make It Your Mitochondria.

    Blood Sugar & Metabolism, Exercise, Longevity, Supplements
    Robin Berzin MD
    January 6, 2026

    Mitochondria are the powerhouses of the cells. They’re also the biological foundation of aging. When they’re thriving, you’re thriving. Read more

  • How Much Does Vigorous Exercise Really Matter?
    Longevity & Metabolic Health

    How Much Does Vigorous Exercise Really Matter?

    Blood Sugar & Metabolism, Exercise, Longevity
    Robin Berzin MD
    January 13, 2026

    Just 10 minutes of vigorous exercise may provide equal—or better—longevity benefits than an hour of low-intensity exercise. 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

  • Fix Your Metabolism to Improve Mental Health
    Brain, Mood & Nervous System

    Fix Your Metabolism to Improve Mental Health

    Blood Sugar & Metabolism, Brain Health, Longevity, Mental Health
    Robin Berzin MD
    October 23, 2025

    Learn how stabilizing blood sugar and reducing metabolic inflammation can improve anxiety, brain fog, and mood—faster than you might expect. 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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