Frequent space travelers should wait three years after a longer mission to allow the physiological changes in their brains to reset, a new study suggests.
As we enter a new era in space travel, researchers were interested in how the human brain reacts to traveling outside Earthâs gravity.
They studied brain scans of 30 astronauts from before and after space travel. Their findings, published in Scientific Reports, reveal that the brainâs ventricles expand significantly in those who completed longer missions of at least six months and that less than three years may not provide enough time for the ventricles to fully recover.
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