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Generally, in space, astronauts & cosmonauts are in a constant state of free fall--the same feeling when you go down a large hill in a roller coaster--but for several hours/days/weeks/months.
So primarily, motion sickness.
But also, the human circulatory systems has evolved to exist with gravity. In orbit, these mechanisms malfunction, and fluid tends to accumulate in the head--causing puffy eyes and faces.
Typically, people adjust to these changes in a day or two. Some unfortunate people never adapt, and have a miserable time in space.
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Why do you blow up in space?
In space, there is no atmosphere to equalize pressure, so any air or gas inside an astronaut's body expands and causes the body to "blow up" or swell. This is known as decompression sickness or the "bends," and it can be dangerous or even fatal. Proper pressurized spacesuits are used to protect astronauts when in space to prevent this from happening.
Why astronauts are important?
Astronauts are important because they advance our knowledge on space, and space exploration. They find cures for diseases or sickness's such as bone cancer or motion sickness. They can also tell what the temperature or weather is. They can also report to other countries if something bad is coming toward them like, a worldwide flood.
Why do astronauts floating around in zero gravity get nauseous?
Yup. Its not uncommon to experience space sickness for the first day or two in space. Some people never adapt (see Jake Garn).
Why do spacemen have to wear suits?
Space suits are necessary for astronauts to survive in the harsh environment of space. They provide protection against extreme temperatures, radiation, and the vacuum of space. They also supply oxygen for breathing and regulate internal pressure to prevent decompression sickness.
Apollo 13.what happens to Fred Haise as they go weightless?
Fred Haise experienced Space Adaptation Sickness, a condition similar to motion sickness and caused by gravitational changes affecting the body's spatial orientation.
Is the flu a sickness or disease?
It is a disease the causes a sickness.
What causes sleeping sickness?
protozoan
What causes emotion sickness?
"emotions".
What is the name of the space sickness that many astronauts get while in space?
Space Adaptation Syndrome
What microbe causes sleeping sickness?
trypanosoma
What causes Rashes?
stds, Plants, Sickness,
What causes altitude sickness?
Altitude sickness is caused by changes in the distribution of oxygen and pressure. The symptoms of altitude sickness resemble those of a cold.
What can astronauts not eat in space?
Why astronauts are not allowed to eat beans
What is sleeplng sickness?
Sleeping sickness is an infection of the brain that causes frequent sleep, among other symptoms.
What causes high white blood counts?
Sickness.
What causes itchy rashes?
stds, Plants, Sickness,
What causes African sleeping sickness and giardiasis?
The Tsetse fly is a vector for Trypanosomatid (trypanosomosis - human sleeping sickness) .
