Spending time in space changes our bodies in surprising ways. Astronauts face many health challenges after returning to Earth. Studies show they can lose bone density and experience spinal issues. Additionally, some astronauts endure swelling of the optical nerve, which affects their vision. Research even suggests that living in space can alter DNA, leaving scientists puzzled.
NASA astronaut Christina Koch recently experienced this firsthand after her mission around the Moon. In a video shared on Instagram, she humorously struggled to walk after splashing down in the Pacific Ocean. “Guess I’ll be waiting a minute to surf again,” she captioned her post.
After weeks in microgravity, astronauts can find it tough to readjust to Earth’s gravity. Koch explained that the inner ear, which helps us understand balance, doesn’t function like it should in space. When they return, astronauts rely heavily on their eyes to navigate.
Koch said, “A tandem walk with eyes closed can be quite the challenge!” This understanding isn’t just academic; it could help in treating conditions like vertigo and concussions on Earth.
Koch is no novice at handling these situations. She previously spent nearly a year aboard the International Space Station, giving her insights into the effects of prolonged space travel. While astronauts exercise to combat some physical impacts of microgravity, adjusting back to Earth’s swing remains tricky.
European Space Agency astronaut Andreas Mogensen shared his experience, noting how difficult it was to walk straight with his eyes closed after returning from the ISS. “I felt wobbly for the first two days,” said fellow astronaut Jasmin Moghbeli. “My neck was very tired from holding up my head.”
The challenges might seem small compared to the incredible views and experiences astronauts have in space. However, these insights into balance and recovery shed light on the lasting impacts of space travel and could lead to better treatments for similar issues on Earth.
For more interesting facts about space travel and its effects, check out NASA’s resources on astronaut health here.
