Fake gravity is essential to avoid brain damage while traveling through space

Nasa may need to invent a spaceship with artificial gravity before humans can venture to Mars, after a new study found weightlessness causes worrying changes in the brain.

A mission to the Red Planet is fraught with technical challenges, but the real difficulties may lie in getting astronauts their with their minds intact.

Alarming new research, funded by Nasa, has found that microgravity causes the brains of astronauts to shift upwards and become squashed at the top of their skulls, piling pressure on vital neural regions.

Crucially, the parts of the brain that are most affected – the frontal and parietal lobes – control movement of the body and higher executive function, which are essential for attention, focus, planning, organising and remembering details.

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