Regarding life in zero gravity ...
after just two weeks, muscle mass can fall by as much as 20%.
Also, these astronauts are no spring chickens. At ages 50, 49, 47, and 50, their bodies won't recover as quickly as the bodies of younger astronauts might.
www.bbc.com/news/articles/cpwjvgv2d4no?utm_source=firefox-newtab-en-us
after just two weeks, muscle mass can fall by as much as 20%.
Also, these astronauts are no spring chickens. At ages 50, 49, 47, and 50, their bodies won't recover as quickly as the bodies of younger astronauts might.
www.bbc.com/news/articles/cpwjvgv2d4no?utm_source=firefox-newtab-en-us
April 11, 2026 - 10:01 UTC
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