MRI scans from 26 astronauts showed the brain shifting backward and upward after spaceflight, with one-year missions moving a motor region 2.52 millimeters, larger insula shifts linking to worse balance and much of the distortion easing through six months back on Earth
A few millimeters of movement inside the skull can reveal how the brain changes position after a long mission. A new set of MRI measurements found that 26 astronauts came back from space with brains shifted higher and farther back in the head and the biggest regional movement appeared in people who had spent about…
