In space, we don't feel the force of gravity like we do on Earth, and this is called microgravity. Our bodies act differently in microgravity. For example, our muscles and bones don't work as hard because they don't have to support our weight like they do on Earth. This can make them weaker over time. Also, our blood flows differently, and our sense of balance can get a little mixed up. We have to exercise a lot on the space station to keep our muscles and bones strong and adapt to these changes.
Imagine you are an astronaut on the International Space Station, and you are responsible for explaining how microgravity affects the human body to a group of elementary school students. Share your explanation with us.