人们认为雌激素提高了有益的胆固醇水平，并且使血管壁更易松驰，从而降低血管堵塞的机率。

Estrogen is thought to raise the levels of good cholesterol as well as enabling blood vessel walls to relax more easily, thus lowering the chances of a blockage.

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开始做操作前先做以下准备动作，使血液畅通，肌肉松驰，做操时不致扭伤。

Before gymnastics, you should firstly Warming-up the followings actions, that can cause blood unimpeded, loose muscle, and not sprain while gymnastics.

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听柔和的音乐。抒情而缓慢的音乐，就好像按序器一样，使我们的神经松驰下来，带领我们进入睡乡。

Lyrical, slow music, the same as if sequential device, so that relaxation down our nerves and lead us into the land of sleep.

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