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总结
多家媒体报道，一项基于宇航员飞行前后影像与生物指标的最新研究发现，微重力会使大脑在颅内向后、向上并略有倾斜移动，伴随组织拉伸与压缩，相关变化在返回地面后可能持续一段时间。研究者认为这或与部分宇航员出现的视力改变、颅内压力变化及免疫相关基因表达波动有关，提示长期驻留和深空任务需加强监测并研发防护措施。
正文
'Backward and upward and tilted': Spaceflight causes astronauts' brains to shift inside their skulls Space Astronauts' brains change shape and position after time in space, study finds NBC News Spaceflight causes astronauts' brains to shift, stretch and compress in microgravity Phys.org Scientists find spaceflight affects immune genes, deforms the brain The Hindu New study finds astronauts' brains change after space travel Sky News
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