Astronauts face muscle loss, bone weakening, and fluid shifts in microgravity. They counteract these effects with daily exercise, proper nutrition, and mental health support. Post-mission, medical teams conduct assessments, while physical therapy aids recovery. Most astronauts, like Sunita Williams, regain full fitness within 45 days of returning to Earth.
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When astronauts like Sunita Williams and Barry Wilmore return to Earth, their bodies undergo physiological changes due to prolonged exposure to microgravity.
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