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With BBC News Hindi

Updated: Saturday, January 15, 2022, 14:19 [IST]

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Scientists have found out why astronauts become anemic after returning from space.

Canadian researchers say more than 50 percent of the body’s red blood cells are destroyed in space, and this happens as long as the mission lasts.

What effect does space travel have on the human body?

He said that due to this, space travel to the moon, Mars or far away is a big challenge.

However, their research could benefit patients suffering from similar diseases on Earth.

Since the first mission to return to Earth from space, scientists have known about anemia in space. But why this happens is still a mystery.

Cells were destroyed during the entire mission

One was carried by 14 astronauts In the study Researchers at the University of Ottawa have learned more. Among the astronauts involved in the study was Tim Peck of the United Kingdom, who spent six months on the International Space Station exploring various topics in space.

During the mission, blood and breath samples were taken from the astronauts so that researchers could measure the number of red blood cells in their bodies.

These cells carry oxygen from the lungs throughout the body and are essential for life.

“In this study, we found that more blood cells are being destroyed when they reach space, and this is happening throughout the mission,” said Dr. Guy Turdell, the study’s lead researcher and hospital physician.

But weight loss is not a big issue in space. But after returning to Earth, it makes the astronauts feel weak and tired and loses their muscle strength.

Every second in space, 3 million red blood cells are destroyed in the body, while on earth only 2 lakh red blood cells are destroyed. However, the body makes up for it. If this had not happened, the astronauts would have become very sick in space.

But researchers aren’t sure how long the body can fill it continuously, especially when astronauts are on long-term missions.

Equal to male and female astronauts Happened Affected

The study found that when astronauts returned to Earth, the problem did not go away. A year later, her body’s red blood cells were rapidly depleting.

But despite this, his body is functioning properly. This problem affected both men and women equally in space.

“If we can find out why anemia actually occurs, we can find a way to cure or prevent it. It could benefit astronauts and patients on Earth,” said Dr. Trudall. “

Dr. Trudell believes that the anemia caused by space travel is similar to the experience of patients who spend months in the ICU seeking treatment for diseases such as covid. During this time his body becomes inactive.

Anemia also prevents them from exercising and recovering. A team of researchers will now explore how this method works in future studies.

The research is published in Nature Medicine. According to the results, participants in long-distance space missions should consume more iron in their diet. Also, you need to burn more calories for energy.

Researchers say it may also be important to examine the effects of anemia on the blood and health of astronauts before traveling to space.

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