Illness and injuries during spaceflight

Spaceflight is really dangerous. People sometimes get sick or hurt in space. That's why astronauts have to prepare really hard before they can go to space. Sometimes, the space environment can make astronauts sick or hurt. For example, the air in space is really thin, and that can make it hard for astronauts to breathe. They also have to worry about getting hit by meteorites or other pieces of space junk. Astronauts have to wear a special spacesuit to protect them from these things. They also have to worry about getting dehydrated because the air in space is dry, so they have to drink a lot of water. Lastly, the radiation in space is really strong, so the astronauts have to be sure to protect themselves from that.