This book is one of THE classics in the field but is now needs serious revision and updating to accommodate new research findings.
The book goes through the well understood reasons for testosterone therapy such as:
Perhaps his most significant contribution in the book is the idea that if a man has secondary hypogonadism, the most common form, it is better to stimulate the body to produce more testosterone, rather than adding external testosterone.
The book also makes a strong and valid point that a man can have normal or even above normal testosterone levels and still feel terrible if their estradiol level is too high.
My score: 2 out of 5.
The main reason is that the book is too far out of date to be truly useful.
Click here to read about the Symptoms of Low Testosterone in Men

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If you think you might be or to prove to yourself that you're not then how about taking a short 5-minute testosterone quiz and finding out? Got the balls?