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MattDamonsDick163 karma

Estrogen plays an important factor in sex drive and development as well. Mostly what we care about is the ratio between T and E. Generally in males you want 10-17 X the testosterone than estrogen (estradiol). His estrogen may have gone up as he aged even though his testosterone stayed the same

MattDamonsDick15 karma

You should be able to look this up on www.guidestar.com