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The astronauts’ bone problem: Nothing will be left

Researchers have made a new conclusion that astronauts who go into space and experience loss of bone mass do not recover even after a year.

According to the news of The Guardian, researchers previously said that astronauts experience a loss of bone density of 1 to 2 percent for each month they spend in space. The new research looked at the wrists and elbows of 17 astronauts aboard the International Space Station (ISS) and on return to understand how astronauts recover when they return to Earth.

The bone density lost by astronauts is equivalent to what they would lose in a few decades when they returned to Earth, said Steven Boyd, co-author of the study and director of the McCaig Institute of Bone and Joint Health, from the University of Calgary in Canada.

The researchers found that nine astronauts’ shin bone density had not fully recovered after one year on Earth, and they still lacked about a decade of bone mass.

The astronauts who went on the longest missions on the ISS, ranging from four to seven months, were the slowest to recover.

Steven Boyd, “The longer you stay in space, the more bone you lose” I mean “Will it continue to get worse over time? We don’t know. It’s possible that after a while we might get to a steady state or continue to lose bone. But I can’t imagine we’re going to keep losing it until there’s nothing left.” he continued.

Odatv.com

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