Home / Science / What happens to the brain when it is in a state of weightlessness? – Space – Science

What happens to the brain when it is in a state of weightlessness? – Space – Science



When the space trip was still in the baby's nap, the scientists tried to figure out how to overcome the gravitational force of the Earth and launch a rocket into outer space. Although gravity remains one of the most important problems in current science, researchers are now struggling to prevent the negative effects of microgravity on human health and especially the brain. This is because a person has evolved to life in an environment with 1 g of gravitation. In the distribution it is 0g, but Mars – 0.3g.

How does the human brain treat microgravity? In short, it's bad. It is true that the information on this is quite limited. This is surprising, given that everyone knows that the astronaut's face remains red and swollen in the unbalanced position. This phenomenon is known as the "Charlie Brown effect" or "swollen head and foot syndrome". This is because, in a state of weightlessness, all bodily fluids run in the direction of the head, putting his head on the head, but the legs become thin.

Body fluids are also associated with nausea and headache, as well as with the blurring of the eye, which is due to the increase in blood pressure in the brain, which causes it to rise upwards inside the skull. NASA sees this syndrome as the biggest threat to astronauts from the Mars mission, but it is not yet clear how this could be prevented.

Professor Damian Bailey, in an article published in Time, finds that certain parts of the brain receive too much blood due to gravity, since nitric oxide (an invisible molecule in the blood) that converges in the circulatory system leads to an enlargement of the arteries and the so-called overload of the cerebral blood barrier. , which causes the brain to accumulate in the water and increase the pressure. This syndrome can aggravate astronauts' vision and negatively affect their cognitive and motor abilities.

Travel on the vocal of the comet

To test this idea, an experiment was needed, during which eight volunteers, during four consecutive days, experienced simulated weightlessness of 30 seconds on the "Vows Comet" plane. In the non-brain, researchers measured blood pressure in several arteries that carry blood to the brain, levels of nitric oxide in the blood and the brain was observed.

The results of the experiment demonstrated the initial hypothesis that the level of nitric oxide in the insufficient weight in the blood, which resulted in an increase in blood flow to the brain, which caused an overload of the blood-brain barrier. It is true that brain damage was not observed.

Now it is planned to complement this research with more detailed information to validate all the proposed theories and start working on finding solutions.


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