宇航员的健康给我们的启示

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目前宇航员在太空飞行中尚有两大卫生健康问题没得到解决。其一,宇航员身体所散发的臭味无法通过空气交换而排除;其二,在失重状态下每天要从骨组织中丢失钙约200毫克,宇航时间过久可引起骨密度下降。前一种体臭污染仅限于宇航过程,返回地球后会自然消除。而后一种失钙问题,则需返回地球后长时间治疗才能逐渐恢复。 At present, there are still two major health problems that astronauts have not solved in space flight. First, the odor emitted by the astronaut body can not be ruled out by air exchange. Second, losing about 200 mg of calcium from the bone tissue every day during weightlessness can cause bone mineral density to drop over time. The former odor of body odor is limited to astronautics and will be naturally eliminated upon return to Earth. And then a problem of calcium loss, you need to return to Earth after a long period of treatment to gradually recover.
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