ⓘⓂⒶⓃ » Erectile Dysfunction Protocol PDF/Book, Jason Long - Page 26

The Testosterone Report In our bodies we have something called Sex Hormone Binding Globulin (SHBG) that binds to testosterone, leaving less “free testosterone”. The free kind of testosterone is what is available for “androgenic use” (i.e. our manly things). What this means is that high total testosterone is important, but not the main amount that interest us, free testosterone is, because it’s what we can really use for our purposes. Using another fancy word to seem smarter than I am, that’s the bioavailable testosterone (free testosterone plus albumine- bound testosterone that can be easily reverted and freed). Average levels of testosterone Ok, how much testosterone is “normal”? As you age testosterone varies a lot, in fact, as the day goes by testosterone varies a lot, in the morning the number is higher (there you have your morning erections), so it’s important, if you are going to get tested (basic recommendation if you are worried about this), doing it at similar times of the day. Testosterone tends to be measured in ng/dl, that means “nanograms per decilitre”, a nanogram being 1/1,000,000,000 grams. Between 250 ng/dl and 850 ng/dl can be considered “normal”, but according Vermeulen 2 , that made a study of the average testosterone and free testosterone in men, your average numbers can be like this: 25-34 years: 617 ng/dl total. 12.3 free. 35-44 years: 668 ng/dl total. 10.3 free. 45-54 years: 606 ng/dl total. 9.1 free. 55-64 years: 562 ng/dl total. 8.3 free. 55-74 years: 524 ng/dl total. 6.9 free. 75-84 years: 471 ng/dl total. 6.0 free. 85-100 years: 376 ng/dl total. 5.4 free. The deviation being between 170 and 213 more or less. See how “father time” is more a “son of…”? 2 Vermeulen, A. (1996). Declining Androgens with Age: An Overview. In Vermeulen, A. & Oddens, & B. J. (Eds.), Androgens and the Aging Male (pp. 3-14). New York: Parthenon Publishing. 8