宇航员的大脑在空间上向上移动, 导致平衡问题, 根据一项新的研究。 Astronauts' brains shift upward in space, causing balance issues, per a new study.

一项新的研究发现,宇航员在航天飞行期间,特别是在国际空间站工作六个月后,脑部在头骨中向上回移动,磁共振扫描显示与平衡问题和运动疾病有关的微小但可计量的变化。 A new study finds astronauts' brains shift upward and back within the skull during spaceflight, especially after six months on the ISS, with MRI scans showing small but measurable changes linked to balance issues and motion sickness. 静卧者在模拟微重力时也发生了类似的变化,尽管不太严重。 Similar shifts occurred in bed-rest participants simulating microgravity, though less severely. 虽然没有观察到持久的神经效应,但研究人员警告说,长期飞往月球和火星有潜在风险,鉴于样本规模小,宇航员队伍历来缺乏多样性,因此需要进行更多的研究。 While no lasting neurological effects were observed, researchers warn of potential risks for long missions to the Moon and Mars, calling for more study given the small sample size and historical lack of diversity in astronaut corps.