The Dr. Z Journal
PCOS, cortisol, and the metabolic shifts of perimenopause. How hormones drive weight, energy, and cycles, and what actually changes them.
A map of which symptoms point toward which hormone system, what overlaps with what, and why the pattern matters more than the checklist.
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Explore the journal
Clear answers for complex health questions, written with care.
Endocrine-disrupting chemicals are real and well documented. What that means for an individual person is a more careful question. An endocrinologist separates the evidence from the marketing.
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An endocrinologist grades the popular hormone-balancing habits. What has real evidence behind it, what is reasonable but unproven, and what is marketing.
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Insulin, cortisol, thyroid and the sex hormones do not act separately. How they interact decides whether metabolic change holds, and which one to investigate first.
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Women make testosterone too, and both too little and too much cause real symptoms. An endocrinologist on what the test can tell you, what it cannot, and what treatment the evidence actually supports.
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Weight redistribution, insulin resistance, and muscle loss in perimenopause are hormonal, not a failure of willpower. What changes and what to do about it.
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You can eat well, train hard, and still not lose fat if your body is holding a chronic stress state. How cortisol interferes with metabolism and what changes it.
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Polycystic ovary syndrome is driven largely by insulin resistance. An endocrinologist explains the mechanism, the correct workup, and what treatment should address.
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