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American scientists from the University of Health and Human activity in Florida reported the discovery of a new negative a factor regarding a person’s stay outside the Earth. Professor Rachel Seidler and her colleagues scanned the brain several explorers before and after space travel. It turned out that being in zero gravity changes the white matter in those areas that are responsible for motion control and handling sensory information.
According to the researchers, such brain degradation reminiscent of what happens in humans as they age, however in orbit, it proceeds incomparably faster. It is possible explains why many astronauts upon returning to Earth suddenly there are problems with coordination and maintaining balance. It is curious that the shorter the mission of the explorer, the brighter expressed violations of his brain. Apparently, the central department the nervous system is able to adapt to zero gravity through some time in orbit. However, the consequences for health is still not the best.
The study involved 15 NASA astronauts, returning to Earth. It turned out that after flying at the base cerebrospinal fluid was collected in the brain. Each brain these people actually swam in the skull above normal. And despite the fact that the white balance is usually eliminated after a few weeks after the astronaut returned to our planet, the changes caused by it in the brain can persist longer, and perhaps even become irreversible.
Health
