Hormonal changes. Women — if you're on hormone replacement therapy (HRT), you've probably learned firsthand that extra estrogen can cause a weight gain in fat, not muscle.

激素变化女性——如果你正在接受激素替代治疗(HRT)，你可能首先己经知道的是，过量的雌激素会导致脂肪量增加，而不是肌肉。

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Female mice that lacked an estrogen receptor were born with longer digits, and those that did not have testosterone had shorter, superfeminine digits.

而缺少雌激素受体的雌性老鼠生来指爪就更长，那些没有雄激素老鼠的指爪则更短，并且非常女性化。

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Despite the difference in brain activity on and off estrogen, participants' scores did not change.

虽然在有无雌激素的条件下，大脑的活动有所差别，但是参与者的得分没有改变。

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Many types of cancers, particularly breast cancers, many breast cancers but not all, are sensitive to estrogen.

许多种癌症,尤其是乳腺癌,很多乳腺癌,但不是所有的,对雌激素十分敏感

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The study did not find any differences in women taking estrogen and progestin compared to those taking only estrogen.

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For instance, Noven Pharmaceuticals (nasdaq: NOVN - news - people ) and Novartis (nyse: NVS - news - people ), which make a patch that delivers estrogen, emphasized that it was not clear that the results could be extended to their product.

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However, the side effects of excess estrogen produce more traditionally feminine traits in people, not masculine.

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