宇航员巴拉特(Michael Barratt)在国际空间站度过200天后,预计身体会出现一些不适。没有了地球引力,他的骨骼和肌肉将减轻,体内制造的红细胞也将减少,心脏则会萎缩。然而,作为一名专事太空医学的医生,巴拉特知道如何通过节食和运动应对这些变化。但视力模糊却是他始料未及的。在2013年2月18日美国科学促进会 Astronaut Michael Barratt expects to experience some discomfort after spending 200 days at the International Space Station. Without the gravitational pull of the Earth, his bones and muscles will lessen, the red blood cells produced in the body will also be reduced, and the heart will be atrophied. However, as a doctor specializing in space medicine, Barratt knew how to cope with these changes through diet and exercise. But blurred vision was unexpected. February 18, 2013 American Association for the Advancement of Science