🚀🧠 Recent NASA research reveals how long-term spaceflight leads to a 'brain swell' phenomenon. Time in space ➡️ more cerebrospinal fluid & enlarged ventricles. Will this challenge be a game changer for our Mars dreams?
Sign up for our email newsletter for the latest science newsNASA has long understood that abnormal amounts of cerebrospinal fluid accumulate deep in the brains of astronauts exposed to microgravity. In 1983, the space agency received
The new study found that it appeared to take at least three years for the pressure to equalize. And if an astronaut returned to space with partially recovered ventricles, the person returned to the old plateau, starting the recovery process all over again.Research sometimes refers to this problem as hydrocephalus associated with long-term spaceflight or, spaceflight associated neuro-ocular syndrome , since the astronauts often develop vision problems.
For one, gray matter volume increases on top of the brain and decreases along the base. The effect was greatest on six-month voyages, but there was no plateau: The growth was even greater on one-year trips to the ISS.
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