A team of scientists has developed a new sleeping bag that will be key to preventing astronauts from developing visual health complications in space, including optic nerve swelling and vision loss. The body that may collect in the head.
According to the British newspaper, “Daily Mail”, a similar increase in brain pressure occurs when you lie down at night, although you are on the ground, but waking up in the morning fixes this by allowing gravity to pull fluids down, but in space, the situation is different because In zero gravity, fluids cause the optic nerve to swell and flatten the eyeball, which is why many returning astronauts have vision problems.
The team tested the sleeping bag on a brave Texas participant, who spent three days lying on his back in bed.
The team said this technology could be critical for future manned missions to Mars, where astronauts will need to spend extended periods of time in low gravity.
Also, after returning from the microgravity environment of the International Space Station, more than half of NASA astronauts who served for more than six months reported changes in their vision, often including the development of farsightedness and mild headaches.
A condition called SANS (spaceflight-associated neuro-ophthalmic syndrome) is associated with a number of structural changes in the body, including progressive flattening of the eyeball, swelling of the optic nerve and retinal hemorrhages.
Previous research from the University of Texas indicated that the reason for SANS is most likely the pressure that body fluids exert on the brain when it is in microgravity, so the idea of developing this bag came with special capabilities to deal with the matter.
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