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

The research produced some interesting [funding / findings] . The researchers explained that, "[gravity / brevity] is not available to pull [fluids / fluidity] down in the body". This means there is a [shaft / shift] in the position of the brain inside the skull. The brain becomes either more squashed or bigger in size. The findings could help doctors [in / on] the future to treat problems that affect the brain's function. One possibility is to treat people who develop problems caused by long-term bed rest. Another possibility is to [treatment / treat] those who have a [built-up / build-up] of fluid in the brain, which can lead to [brain / brainy] damage. The researchers also say we will understand more about how [neurons / nervous] in the brain make connections. In addition, the findings will help future [spatial / space] travellers to Mars.