Gravity forces some of this water out of the blood vessels and into the tissues of the legs and feet, where it causes painful swelling known as peripheral edema.

妇女怀孕期间将保留30%或更多的水在血液中以帮助以胎儿发育。但地心引力会将这些这水引入腿和脚的组织血管外面，它导致妇女怀孕后腿及脚痛苦的膨胀以及周边浮肿。

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Gravity forces some of this water out of the blood vessels and into the tissues of the legs and feet, where it causes painful swelling known as peripheral edema.

妇女怀孕期间将保留30%或更多的水在血液中以帮助以胎儿发育。但地心引力会将这些这水引入腿和脚的组织血管外面，它导致妇女怀孕后腿及脚痛苦的膨胀以及周边浮肿。

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