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flag Astronauts face severe health risks on long space missions, prompting NASA to study these effects for future Mars missions.

flag Astronauts on long space missions face severe health challenges including muscle atrophy, bone loss, vision problems, and psychological stress from extended isolation. flag These risks are heightened by radiation exposure and microgravity, which can cause cancer, cardiovascular issues, and weakened immune systems. flag NASA is studying these effects to prepare for future deep-space missions like Mars exploration.

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