Astronaut Medical Problems.

3. Astronauts' lose the pressure that their heart pumps this.
4. The immune system gets suppressed over time, causing this to happen easier.
5. The spinal cord can do this when in space, causing height changes.
8. Astronauts lose this due to sleep disturbances, lack of sun, and stress levels.
10. A skin condition that is sort of like a rash.
13. Low blood pressure when standing.
15. Doctors, and other medical people do this to check on astronauts.
16. This can happen when fluid pushes on the eyes and brain.
18. Astronauts do this to not lose muscle and bone.
19. Swollen eyes, due to fluid pushing on the back of the eye.
20. Zero gravity, causing a bunch of problems.

1. This deteriorates due to not being used much in space.
2. Astronauts grow these on the top of their feet and lose them at the bottom of their feet.
6. This can occur when astronauts don't much interaction.
7. This can cause DNA damage.
9. A heart condition.
11. A small space/small area that you are stuck in.
12. Due to being in space for so long, astronauts feel this when they reach earth.
14. Astronauts do this after reaching earth because they adapted to space.
17. Astronauts lose this when they try and walk on earth.