但是，如果真的有关系的话，她怀疑妊娠激素，如雌激素和黄体酮可能要承担全部责任。

But if there is one, she suspects pregnancy hormones such as estrogen and progesterone might be to blame.

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然而，对于某些妇女来说，妊娠期间激素的变化反而会改善哮喘的症状。

For some women, however, hormone changes during pregnancy may actually improve asthma symptoms.

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激素周期变化。经前综合症的体征和症状随着激素的变化而发生变化，而在妊娠期和更年期的时候会消失。

Cyclic changes in hormones. Signs and symptoms of premenstrual syndrome change with hormonal fluctuations and disappear with pregnancy and menopause.

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