Men have testosterone and women have

3) D Simon, MA Charles, K Nahoul, G Orssaud, J Kremski, V Hully, E Joubert, L Papoz, E Eschwege. Association between plasma total testosterone and cardiovascular risk factors in healthy adult men: The telecom study. Journal of Clinical Endocrinology and Metabolism 82:2(FEB 1997):682-685. Some doctors give the low dose injections of 25 mg of testosterone cypionate or enanthate every 2 weeks. The treatment for men who have almost no testosterone is 10 times that dosage. A normal male produces the equivalent of 100 mg of testosterone (enanthate) each week.

But I'm not more aggressive—a behavior change often tied to testosterone. That's not surprising to Robert Sapolsky, ., a neuroendocrinologist at Stanford University and a leading researcher on stress and behavior. "It's really not the case that testosterone 'causes' aggressive behavior," he says. "Instead, it makes the brain more sensitive to social cues that trigger aggression. And in support of that, a guy's testosterone level isn't a very good predictor of how likely he is to be aggressive."

Men have testosterone and women have

men have testosterone and women have

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