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houston station on space to ground

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welcome to space to ground your weekly

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look at what's happening on board the

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international space station i'm dan

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hewitt our bodies change a lot when we

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get to space and the brain is no

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exception a whole suite of experiments

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are taking place on board the space

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station studying everything from basic

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hand-eye coordination to astronauts mood

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and emotional changes and chell lingren

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let us know that it can take a while for

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the brain to get used to its new

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surroundings it takes about six weeks to

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really feel um like

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you're acclimated to moving around and

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just living in this environment and also

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to feel like you really kind of know

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what you're doing here on the space

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station on a daily basis

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and there are a million things that can

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affect an astronaut's mental abilities

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including getting a good night's sleep

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just like here on the ground working in

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space is a whole lot easier when you get

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enough shut eye so the onboard crew has

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been logging their rest experiences for

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the sleep iss 12 experiment it's

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studying how exposure to the space

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environment and different lighting

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conditions influence alertness and the

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quality of sleep this will help refine

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astronaut sleep setups for the future

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and could even help diagnose sleep

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disorders here on earth

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this week's question is from richard who

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wants to know why astronauts keep their

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arms folded when they're on camera well

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why don't we take that question to an

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expert scott kelly why do you keep your

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arms folded

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well

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it's interesting you know it's kind of

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awkward the position you you've your

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your natural like floating position

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it's i don't know it's sort of

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comfortable but it's awkward to have

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your arms out like this i think

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it's also a little chilly in here

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so it's kind of a combination of the two

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thanks scott and keep sending us your