Science
Anaemia in astronauts could be a challenge for space missions
Published
3 years agoon
By
Digital Team
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.”
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.
“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.
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.
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Trending
At a birthday party, Sidharth Malhotra and Kiara Advani draw attention with stunning outfits.
Published
2 months agoon
January 28, 2025By
Digital Team
Last night in Mumbai, all the prominent figures from Bollywood attended producer Ashvini Yardi’s birthday celebration. The celebration was attended by a number of celebrities, including Salman Khan, Akshay Kumar, Sonakshi Sinha, Kartik Aaryan, Ekta Kapoor.
Riteish Deshmukh, and Genelia D’Souza, in addition to the rumoured coupling of Sidharth Malhotra and Kiara Advani. Sidharth and Kiara smiled for photographers outside the venue while wearing fashionable outfits.
Sidharth Malhotra and Kiara Advani turned heads at a star-studded birthday party with their impeccable fashion choices and undeniable chemistry. The Bollywood power couple, known for their on-screen and off-screen charisma, made a stylish appearance that left fans and photographers.
The two actors frequently spend out together, and this party was one of those times even if they haven’t totally embraced their connection. Scroll down to see their outfits for the affair. Meanwhile, Sidharth Malhotra and Kiara Advani have confessed their relationship while appearing in several episodes of Koffee With Karan season.
Celebrities flocked to Mumbai on Monday to celebrate Ashvini Yardi’s birthday with a star-studded party. In the same car, Sidharth Malhotra and Kiara Advani also made their way to the celebration and posed for photos with photographers outside the venue. Sidharth complemented Kiara’s star-studded.
event attire of a halter crop top and shimmering skirt by wearing jogging trousers and a casual denim tee. Particularly chic was Kiara’s attire for the event, which we adored. On social media, numerous paparazzi accounts posted videos of the two celebrities. Speaking of Kiara’s glitzy attire, the Shershah actor wore a fashionable crop top with a butterfly design. The white blouse has a figure-hugging fit, an asymmetrical hem, a bare-back design with ties on the back, and a halter-style plunging V neckline.
Kiara paired it with a golden-colored shimmering skirt with a flowy style, wide high-rise waistline, and pleated accents at the ankle-length hem. She accessorised the look with bold rings, yellow box-shaped hoops, and black strappy high heels. Open hair with a centre part, a neutral lip colour, and dewy makeup completed the look.
Sidharth, on the other hand, posed with Kiara while wearing an acid-washed denim collared shirt with full-length sleeves that were folded in and front patch pockets. His outfit for the occasion included a chic watch, grey baggy pants, high-top white lace-up sneakers, a centre-parted hairstyle, and a clean-shaven face.
Meanwhile, Sidharth Malhotra and Kiara Advani have sort of confessed their relationship while appearing in several episodes of Koffee With Karan season 7. In the 2021 movie Shershaah, the two celebrities were spotted together.
Riteish Deshmukh, and Genelia D’Souza, in addition to the rumoured coupling of Sidharth Malhotra and Kiara Advani. Sidharth and Kiara Sidharth, on the other hand, posed with Kiara while wearing an acid-washed denim collared shirt with full-length sleeves that were folded in and front patch pockets.
His outfit for the occasion included a chic watch, grey baggy pants, high-top white lace-up sneakers, a centre-parted hairstyle, and a clean-shaven face. smiled for photographers outside the venue while wearing fashionable outfits. The two actors frequently spend out together, and this party was one of those times even if they haven’t totally embraced their connection. Scroll down to see their outfits for the affair.
Sidharth Malhotra and Kiara Advani turned heads at a star-studded birthday party with their impeccable fashion choices and undeniable chemistry. The Bollywood power couple, known for their on-screen and off-screen charisma, made a stylish appearance that left fans and photographers in.
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