New Delhi, March 21 -- NASA astronauts Sunita Williams and Butch Wilmore have returned to Earth after spending an incredible 286 days in space. As they come back to Earth's gravity, there is a lot of talk about the health challenges they might face during their readjustment. In space, Sunita experienced a loss of bone density and muscle mass due to the lack of gravity. But it is not just about what happened up there--Earth's gravity brings its own set of challenges. After months in an environment completely different from Earth, factors like microgravity, confinement in small quarters, isolation, and radiation exposure can all impact their health. Know the common health problems Sunita Williams might face.

10 health problems Sunita Willi...