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This is an incredibly interesting, rich, and detailed controlled study (with a twin on the ground) of the effects of human spaceflight on the human body. Every paragraph is a goldmine.https://science.sciencemag.org/content/364/6436/eaau8650 …
The test subject spent roughly a year in space. Here's the results from a battery of 10 cognitive tests. Striking result: postflight, many show major declines, sometimes 2 or more standard deviations:pic.twitter.com/e1uOCJewy3
Another remarkable result: telomeres lengthened(!) substantially during the flight. And returned to normal postflight.pic.twitter.com/5FP19MLwb2
They appear to have simply measured every darned thing they could, so this should be a marvellous data set for the future. Here's the short abstract of results, for (a rather understated) flavour, but the whole paper is really interesting and worth reading.pic.twitter.com/ZHyF9pqi7d
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