Unabridged Audiobook
I found this book to be very helpful and informative. I am currently following the recommendations this book gave.
Book is brief but it has tons of wisdom. I thought my testosterone was 'normal' until I realized through this book that I was in the range of an 80 year old.
So I downloaded this because I wanted to see what a inexpensive book like this could really offer. My favorite books on the subject are The Hardness Factor & The Four Hour Body.
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