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Vol. 04 · Hormones

Hormones, in Balance.

Menopause, testosterone, and thyroid — and what the evidence now says about hormone therapy.

By Patrick Mullen, MD
Hormones, in Balance — cover
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Inside the complete guide

What’s inside.

01
Hormone Basics

The brain–gland feedback loop · estrogen, progesterone, testosterone · DHEA · thyroid

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02
Menopause & the 2002 Story

Perimenopause and menopause · what the Women’s Health Initiative really showed · what changed in 2025

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03
Men & Testosterone

Decline and its causes · what to rule out first · fertility · the testosterone trap

Complete edition
04
Thyroid, Clearly

The thermostat and the conversion · the ‘slow thyroid’ myth · mirror-image symptoms

Complete edition
05
Testing & the Foundations

What to measure and when · the lifestyle levers hormones depend on

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06
Therapy Options Your Doctor May Discuss

Menopausal hormone therapy · bioidentical, synthetic, compounded · routes · monitoring · red flags

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Written by Patrick Mullen, MD. Educational content only — not individualized medical advice. Talk with your own physician before making changes.

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