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Anaemia in astronauts could be a challenge for space missions

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Anaemia in astronauts could be a challenge for space missions

Humanity’s next “giant leap” could be a trip to Mars, but getting enough oxygen-carrying red blood cells for the journey could present challenges, new research suggests.

Even space tourists lining up for short trips may have to stay home if they are at risk for anemia or a lack of red blood cells, the researchers said.

Astronauts have been known to experience “space anemia,” but until now it was considered temporary. A NASA study called it “the 15-day disease.”

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Doctors attribute it to the destruction or hemolysis of red blood cells, which is caused by changes in fluids as the astronaut’s body adapts to weightlessness and readjusts to gravity.

In fact, anemia is “the main effect of going to space,” said Dr. Guy Trudell of the University of Ottawa, who led a study of 14 astronauts funded by the Canadian Space Agency. “As long as you’re in space, you destroy more blood cells than you make.”

Normally, the body destroys and replaces nearly 2 million red blood cells every second. Trudell’s team found that astronauts’ bodies destroyed 3 million red blood cells per second during the six-month mission. “We thought we knew about space anemia, but we didn’t,” Trudell said.

Astronauts produced extra red blood cells to compensate for the destroyed red blood cells. But, Trudell asks, how long can the body continue to produce more than 50 percent of its red blood cells? NASA estimates that the mission to and from Mars will take about two years.

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“If you’re on your way to Mars…you can’t keep up” with the need to produce all these extra red blood cells, “you could be in serious trouble,” Trudell said.

When your body is weightless, the reduction in red blood cells in space isn’t a problem, he added. But after landing on Earth, and possibly on other planets, anemia could affect astronauts’ energy, stamina and strength.

A year after returning to Earth, the astronauts’ red blood cells had not fully returned to their pre-flight levels, his team reported Friday in the journal Nature Medicine.

Trudell also looked at the effects of immobility in patients who were bedridden for weeks or months.

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He said the new findings mimic what he sees in patients, suggesting that what happens in space can also happen to patients with reduced mobility.

Complete News Source : India Today

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Bollywood

Kareena Kapoor chuckles at Jeh’s antics while sharing pictures of Taimur during a skiing trip in Switzerland.

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Kareena Kapoor chuckles at Jeh’s antics while sharing pictures of Taimur during a skiing trip in Switzerland.

Kareena Kapoor is enjoying her vacation in Switzerland with her husband, Saif Ali Khan, sons Taimur and Jeh, sharing photos from their skiing session on Instagram. Taimur, dressed in a red and green outfit, stands outdoors wearing ski gear, captioned by Kareena with a red heart and laughing emojis and a star emoji.

Kareena and Saif Ali Khan surprised their sons with special gifts during Christmas, sharing a glimpse of her international celebrations on Instagram. Kareena and Saif, who worked together in LOC Kargil and Omkara, fell in love on the 2008 film Tashan. They have two sons, Tamir and Jeh, and two children.

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Kareena appeared in Rohit Shetty’s action film, Singham Again, alongside Ajay Devgn, Akshay Kumar, Ranveer Singh, Tiger Shroff, Deepika Padukone, Arjun Kapoor, and Jackie Shroff.

Kareena Kapoor, the Bollywood actress known for her charismatic presence both on and off the screen, recently shared a heartwarming glimpse into her family vacation with her sons Taimur and Jeh during their skiing trip to Switzerland. Kareena, who frequently delights her fans with pictures of her family, posted some adorable snapshots that captured her son Taimur’s fun-filled moments on the snowy slopes.

The pictures, which were shared on her social media, show Taimur happily skiing and enjoying his time in the picturesque Swiss Alps. Fans were quick to notice his growing sense of independence and adventure as he took on the slopes with enthusiasm. As the firstborn of Kareena and Saif Ali Khan, Taimur has often been in the public eye since his birth, and his fans love to keep up with his activities and milestones.

However, it wasn’t just Taimur who stole the spotlight in Kareena’s recent post. The actress also shared a few candid moments featuring her younger son, Jeh. In one of the photos, Jeh is seen playfully enjoying his time in the snow, and Kareena can be heard chuckling in the background at his antics.

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The playful interactions between mother and son were endearing, and Kareena’s affectionate laughter resonated with her followers, who were quick to comment on how sweet it was to see such a joyful family moment.

Kareena’s captions further added to the charm of the post, as she wrote about how skiing was not just an adventure for Taimur but also a bonding experience for the entire family. While Taimur was embracing the thrill of skiing,

Jeh was content with his little snow games, and Kareena couldn’t help but laugh at the amusing and often unpredictable nature of family vacations with young children. Her playful comments Taimur and Jeh away from the hustle andabout Jeh’s quirky behavior added a light-hearted touch to the post, making her followers feel connected to her and her family.

The scenic backdrop of Switzerland added an enchanting layer to the beautiful pictures. With snow-capped mountains and picturesque landscapes, the family seemed to be having the perfect winter getaway. Kareena, known for her love for travel, has often shared snippets of her vacations with her followers, and this trip to Switzerland was no different. Fans were overjoyed to see the Kapoor family creating new memories together.

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Beyond just a fun-filled family vacation, the skiing trip also highlighted Kareena’s bond with her children. As a busy actress who juggles her career and family life, Kareena has always emphasized the importance of spending quality time with her loved ones. This trip was no exception, as she used the opportunity to bond with Taimur and Jeh away from the hustle and bustle of their daily lives.

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