Most men's health writing is either a supplement ad wearing a lab coat or a research summary nobody finishes reading.
This letter tries for something narrower. It covers what changes in the second half of a man's life — energy, sleep, strength, sex, the slow arithmetic of bloodwork — and what the evidence actually supports, including when the honest answer is that nobody knows yet.
It is written for readers who want to understand a decision before making it, and who would rather hear "the study was small" than a promise.
Recent letters
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No. 04
What a testosterone panel does and doesn't tell you
Reference ranges are wider than most men expect, and a single draw at the wrong hour can misread by a lot.
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No. 03
The sleep debt nobody bills you for
Six hours a night feels survivable at 45. The cost shows up in places you would not connect to sleep.
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No. 02
Reading a telehealth prescription like a skeptic
What compounding means, why prices vary so widely, and the questions worth asking before you order.
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No. 01
Strength is the one number that keeps mattering
Grip and leg strength predict more about the next twenty years than most men are comfortable with.
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