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When they come back from a space mission, their brains seem older than they were. But the effect is not definitive
It is impossible to go into space and come back in the same way. Guilherme Eler
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Feb 1, 2019, 6:49 PM – Posted Feb 1, 2019, Forced confinement, life without gravity, dehydrated food and the ability to look at the globe through the window of the module space, for example, will soon be erased from memory – and should continue to tie the heads of astronauts years later.
Different studies have already shown that a rocket revolution could cause such problems as damage to the bones, muscle mbad and of the world. ocular as well as DNA modifications caused by high levels of radiation in space
Accidents that have occurred over a long orbit are being reported even after dismounting. The first moments after their return to Earth, for example, astronauts may be faced with a loss of balance and coordination difficulties.
New research published by scientists from the University of Florida in the magazine JAMA Network can help explain why these immediate effects occur.
The study examined the brain scans of 15 astronauts (12 men and 3 women) from NASA, who conducted space missions between 2010 and 2015. Seven of them performed a mission shooting. short, which lasted up to 30 days. For the remaining eight, the time away from home was much longer – at least 200 days spent on the International Space Station.
According to scientists, returning from space missions, astronauts have presented changes in the "white matter" of the brain in certain areas. such as motion control and sensory information processing. The cerebral part known as the white matter gathers bundles of nerve cells that connect different areas of the gray matter and send information to the bone marrow.
In the study, the main change was the largest intercranial fluid movement, which lies between the brain and the skull. As a result of this change, participants' brains typically floated higher than what they should have been inside the skull after the microgravity season. The responsibility for the greatest accumulation of liquids in the lower part of the brain. This behavior has been shown to be more common among astronauts who have spent longer periods in space or in several space missions.
According to scientists, type changes are an effect that usually occurs with the natural aging process. In the space, however, this manifests itself more quickly. That is to say that going on a mission in space leaves your brain slightly aged – at least as far as fluid movements are concerned. It is good to note that the effects disappear within a certain time, of course, and after that, the astronauts' movement is identical to the one they had when they left the planet (as well as the position of their brain in the skull ). ] In future studies, researchers plan to badyze scans six months after space missions, to understand if the changes persist – and how much a visit to space can relate to health. Understanding these impacts is essential for us to plan to travel ever greater distances, such as a visit to Mars or, perhaps, a season of space tourism.
