The crew space trip is not just an engineering achievement. It is a test for the endurance and elasticity of the human body. In fine gravity, the body of the astronauts suffers dramatic changes. The muscles are weakened, the bones lose density, and can affect body fluid movement and vision. In addition, deep universe can be exposed to radiation, which can damage DNA and increase long -term health risks.
It is important to accurately understand how space travel affects the human body as space agencies and private companies plan the moon, Mars, and beyond it. For this reason, researchers continue to develop medical measures that provide information by motor therapy, protection technology and numerous studies. But the universe still remains an unforgivable frontier.
Damage to micro shooting in the body
Gravity is the power of silence that forms the human body. On Earth, strengthen muscles, maintain bone density, and control the distribution of fluid. But in fine gravity, the balance is lost. If you don’t have to support your weight, your muscles begin to weaken, especially in your legs, back and core. Bones are also suffering. NASA studies have shown that astronauts are generally lost. 1 % to 1.5 % of bone density per monthIncreases the risk of fractures and osteoporosis.
To fight these effects, the astronauts The International Space Station (ISS) follows a strict exercise routine.Using special equipment to consume about 2 hours a day with resistance -based exercise. Some are even prescribed Bone reinforced drug, It helps to slow down the same worsening like bisphosphonate. These measures help, but do not completely prevent bone loss, so long -term missions challenge human physiology.
Read more: The international space station can be too clean, but this microorganism can help.
Fluid shift and vision change
Fine gravity does not weaken muscles and bones. It interferes with the way the fluid moves throughout the body. On Earth, gravity pulls the internal fluid downward. But in space The fluid moves to the upper body and the head. About 2 liters of fluid redistribution causes swelling, head congestion, and increased pressure inside the skull.
For about 70 %of astronauts, these changes are dramatic enough to lead to astronaut-related neuro-aquaculture syndrome (SANS), and excessive liquids of the head transform the shape of the eye. result? Permanent vision changes, depending on the structural changes in the brain, blurry vision and some cases.
Scientists still have some astronauts to develop SANs, while others are trying to understand why they are not, but the state can poses. Much more important challenge for deep space missions.
Threat of space radiation
The earth’s magnetic field acts as a shield and protects us from high energy radiation from the sun and galaxy space rays. But beyond the orbit of the universe, especially the earth, astronauts can be exposed to these particles, which can damage DNA. Increase the risk of cancerAccelerates cell aging.
You can also do radiation It has a negative effect on brain function. Some studies show that long-term exposure to spatial radiation can accelerate how quickly the beta-amyloid plaque can accumulate in the brain, which can potentially increase the risk of cognitive diseases such as Alzheimer.
To protect astronauts, scientists are striving to treat better spaceship shielding, radiation resistance materials and cell damage. But until this defense is improved, radiation exposure is one of the biggest barriers to crew exploration.
Read more: Spending time in space slows the thought of an astronaut.
Psychological and emotional damage
Space trips are not only physical challenges but also major mental exams. The pressure on isolation, confinement and high -definition decision -making can greatly weight the astronaut.
Sleep is another challenge. ISS orbits the earth every 90 minutes. This means that astronauts experience 16 sunrise and sunset a day. The rapidly changing light cycle can interfere with the rhythm. It adversely affects awareness, concentration and performance.
To help astronauts to maintain mental and physical welfare, astronauts implement a carefully structured schedule that controls work, exercise and relaxation. NASA also uses strategic LED lighting systems that are adjusted to brighter and brighter light during the “morning” time. This helps astronauts to sync internal clocks and improve sleep.
Future Preparation: Protects human health in space
Since we plan to push humans into space more, researchers are racing to develop new ways to protect astronauts who will carry out long -term missions on the moon or other planets. Some of the most promising developments are:
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Pharmaceutical solution: Scientist Drug exploration This can slow bone loss and preserve the skeletal strength of microclaction. Other drugs can protect cells from radiation damage to reduce the risk of long -term health, such as cancer and neuromoduscular diseases.
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Improved motor skillsEngineers are developing advanced resistance and vibration -based exercise equipment to better imitate the effects of gravity on muscles and bones. This improvement can help maintain strength and endurance more effectively during the extended mission of astronauts.
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Improved spaceship shielding: Researchers are conducting new materials and innovative tests. Detection and shielding technology that absorbs or biases space radiation. Future spaceships can integrate multilayer protective barriers or water with radiation shields.
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Artificial gravity research -Scientists are investigating Rotary spaceship design It can generate artificial gravity through centrifugal force. This technology can help astronauts to oppose the harmful effects of long -term weightlessness by providing the same environment as Earth.
Also, integration Wearable technology Researchers are already revolutionizing how they monitor the astronauts in real time. The device traces everything from muscle activity to sleep patterns, providing important data to help you adjust countermeasures according to individual needs. If we look at the future tasks, including potential sailing on Mars, all these medical and technological innovations will be the center of ensuring crew safety and mission success.
The human body can adapt, but the universe presents a challenge, unlike what we faced before. Each mission expands our understanding of how we function beyond the boundaries of the earth, and strengthens us closer to the future where humans can thrive in the universe.
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