The body is affected in many ways as your duration of stay in space increases, such as:
- Muscles become smaller as you wouldn't need to use it as much.
- Bones become thinner and more fragile as gravity doesn't keep the calcium in your bones.
- Confusion occurs more often as the cells in your brain can't tell which side is up.
- The Heart pumps blood slower as the blood will float due to the loss of gravity.
- Radiation, on Earth space radiation is reduced but in space you cant imagine how much there is.
- Space sickness is the most common, the sicknesses include: headaches, malaise, nausea and vomiting.