Charles J. Ryan

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Books by Charles J. Ryan

The Virility Paradox

The Vast Influence of Testosterone on Our Bodies, Minds, and the World We Live In

By Charles J. Ryan

From mandatory testing for military personnel to the prevalence of “Low T” clinics, testosterone keeps showing up in headlines, but the profound effects this hormone has on our lives are nothing new.

A scientific exploration of men's health, TRT, and human behavior, Th...

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