Why do testosterone levels among healthy men vary so much? Hayes speculates that some men may have highly efficient testosterone receptors—cellular traps that grab the free hormone in the blood—so that what appears to be an abnormally low testosterone level is all the hormone they need. But even an individual’s testosterone levels can be markedly [...]

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How Safe Is It Really? However, bio-identical hormone therapies are not approved by the FDA. The idea is that bio-identical hormone therapy can be individually tailored to the person requiring it, generally a woman requiring post-menopausal hormone replacement therapy. According to manufacturers of these products, they are safer than standard therapies. Again, none of the [...]

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