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NASA's new sleeping bag will prevent astronauts from losing their eyesight

BingMag.com <b>NASA's</b> <b>new</b> <b>sleeping</b> <b>bag</b> will <b>prevent</b> <b>astronauts</b> <b>from</b> <b>losing</b> <b>their</b> eyesight

NASA researchers have developed a suction sleeping bag that can prevent fluid from accumulating in astronauts' heads, resulting in impaired vision. To become an astronaut, you need to have a full view of 20 out of 20, but unfortunately the effects of space can cause astronauts to return to Earth with poor eyesight. Researchers at the University of Southwest Texas Medical Center have now developed a sleeping bag that can prevent or reduce these problems by effectively sucking fluid from astronauts.

More than half of NASA astronauts, more than six The moon has gone to the International Space Station (ISS), with varying degrees of vision problems. In one case, John Philips, who was on the space station for six months in 2005, returned and his vision dropped from 20/20 to 20/100.

For example For many years on Mars, this can be a challenge. "It would be catastrophic if the astronauts were so badly injured that they could not see what they were doing and jeopardize the mission," lead researcher Dr Benjamin Levine told the BBC.

BingMag.com <b>NASA's</b> <b>new</b> <b>sleeping</b> <b>bag</b> will <b>prevent</b> <b>astronauts</b> <b>from</b> <b>losing</b> <b>their</b> eyesight

Negative effect of fluid accumulation on the human eye
Credit : UT Southwestern Medical Center

When you sleep, fluids accumulate in your head, but on the ground, when you wake up, gravity pulls them back into your body. But at low gravity, more than half a gallon (about 2 liters) of fluid collects in the head.

This in turn puts pressure on the eyeball and makes it flat It can lead to vision impairment called "Spaceflight-Associated Neuro-Ocular Syndrome" or "SANS".

To combat SANS, researchers They partnered with REI, a manufacturer of outdoor equipment, to create a sleeping bag that fits around the waist and restricts the lower torso. Then a vacuum cleaner like a vacuum cleaner is activated, which draws the liquid towards the legs and prevents it from accumulating in the head.

About 12 people volunteered to test this technology and the results were positive. But before NASA can take the technology to the International Space Station, some questions need to be answered. Including the optimal time that astronauts have to sleep in this bag every day. They should also determine whether any astronauts should use this sleeping bag or only for people who are at risk of developing SANS.

However, Dr. Levine Hopefully, by the time NASA prepares to go to Mars, flight-related vision syndrome will no longer be a major problem. "This is perhaps one of the most critical medical issues identified for space programming in the last decade," he noted./p>

Source: Engadget

Tags: nasa's, new, sleeping, bag, prevent, astronauts, from, losing, their, eyesight

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