Side effects Artemis II astronauts might suffer once they return to Earth

Astronauts returning from space are expected to be greeted like global heroes, but their first moments back on Earth are often far from celebratory, according to space medicine experts.
After spending days or weeks in microgravity, the human body undergoes rapid changes. Muscle strength decreases, balance systems are disrupted, and the inner ear—responsible for orientation—must readjust to gravity. As a result, even standing upright after landing can feel physically overwhelming, with some astronauts describing sensations of heaviness, instability, and disorientation.
Upon arrival aboard recovery vessels, medical teams typically prioritize immediate health checks rather than ceremonial recognition. The focus is on stabilizing the body as it adapts once again to Earth’s gravitational pull, which can temporarily feel intense and unfamiliar.
Rehabilitation begins almost immediately after landing. Astronauts undergo guided movement exercises, continuous monitoring, and structured physical therapy designed to rebuild strength and coordination lost in orbit. The process is gradual and closely supervised, even for experienced space travelers.
Despite their training, many astronauts report that the transition back to Earth remains one of the most physically demanding parts of spaceflight. Fatigue, dizziness, and muscle weakness are common in the first hours and days after return.
Experts say this recovery period underscores a key reality of human space exploration: reaching space is only half the challenge—the other half is safely readjusting to life under Earth’s gravity.




