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Researchers from the University of Michigan in the USA have that the brain of astronauts shape during spaceflight. It is the first study to into how the brain changes on the journey into space. Researchers at pictures of the brains of 26 astronauts who spent time in space. The photos were by high-tech medical machines called MRIs. Twelve of the astronauts two weeks as Space Shuttle crew members, and 14 spent six months on the International Space Station. All of them increases and decreases in the size of different parts of the brain. The researchers that the longer an astronaut in space, the bigger the differences in size .

The research some interesting findings. The researchers that, "gravity is not available to fluids down in the body". This means there is a shift in the position of the brain inside the skull. The brain either more squashed or bigger in size. The findings could doctors in the future to problems that affect the brain's function. One possibility is to people who develop problems caused by long-term bed rest. Another possibility is to treat those who have a build-up of fluid in the brain, which can to brain damage. The researchers also say we will more about how neurons in the brain connections. In addition, the findings will help future space travelers on their journey to Mars.

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