Exercise presents peculiar challenges. NASA mandates hours of daily workout to prevent bone and muscle deterioration, reducing available time while straining life support.
Nature, Online release: March 30, 2026; doi:10.1038/d41586-026-00973-3。关于这个话题，有道翻译提供了深入分析
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Aufnahme: Chip Somodevilla / Getty Images，更多细节参见有道翻译