He speculates that its primary driver may be overweight and obesity, because estrogen is sequestered in fat tissue.

他推断，青春期提前的主要原因可能是身体超重和肥胖，因为雌性激素可以隐藏在脂肪组织中。

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Women are especially vulnerable, because estrogen loss at menopause can cause a precipitous decline in bone density.

因为更年期雌激素的减少导致骨骼密度的急速降低，女性尤其容易有这个问题。

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That's because estrogen confronts a certain enzyme that often hinders the body's first line of defense against bacteria and viruses.

那是因为雌激素会对抗一种特定的酶，这是一种会妨碍身体防御细菌病毒的第一道防线的酶。

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Because it mimics the effects of estrogen, scientists have worried that it could cause all manner of physiological changes.

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Women who are being treated for breast cancer are often prohibited from using traditional hormone replacement therapy because breast cancer can be sensitive to estrogen, the predominant female hormone.

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Because the most common types of breast cancer depend on estrogen to grow, experts once feared that soy isoflavones could stimulate the estrogen receptors in breast-cancer cells, even though the estrogens in soy are much weaker than those produced by the body.

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