This is exactly what happens to your body when you're stuck in space.
To prepare astronauts for the microgravity environment of space, they take part in rigorous training and simulations to get their bodies used to zero gravity and weightlessness.
Now, they could spend Christmas and New Year's at the International Space Station, with NASA reporting they may not return until 2025. Low bone mineral density leads to an increased risk of broken bones. If too much is lost, there is a risk of developing osteoporosis.Astronauts can experience a loss of bone density. There are other significant effects of extended periods in space on human health.Without gravity, the messages the brain sends to muscles and internal organs can change.
"Currently, the main operational countermeasure against the adverse effects of radiation is simply limiting astronaut exposure, which means limiting the amount of time astronauts are allowed to be in space," NASA notes in its report Space Faring: The Radiation Challenge. "We've seen astronauts who had trouble walking due to weakness and lack of balance after returning from spaceflight, to others who cheerfully rode their bike on Johnson Space Center campus to meet us for a study visit," said co-author Dr Steven Boyd, a professor in the Cumming School of Medicine at the University of Calgary , Canada.
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
'How on earth is that in our country's best interest?': Peter Dutton defends call to bar Gaza refugees&x27;How on Earth is that in our country&x27;s best interests?&x27;
Read more »
'Catastrophic': Ocean temperatures around Great Barrier Reef hit 400-year high, study claims&x27;I had to triple check my calculations - it was off the charts.&x27;
Read more »
Australians' litter floating to Antarctica carrying invasive species&x27;There seems to be a constant bombardment of anything that floats.&x27;
Read more »
'Shoot me up with a big one': A timeline of the last days of Matthew PerryDrawn from unsealed court documents and a medical examiner&x27;s investigation, here&x27;s how Perry&x27;s last days unfolded.
Read more »
Video shows bodies on burnt-out Russian trucks in Kursk region as Ukrainian cross-border assaults rageIt&x27;s the latest sign that Ukraine&x27;s assault is probing more deeply and inflicting significant damage on Moscow&x27;s troops.
Read more »
Deja Vu: What is it and why does it happen?It&x27;s a bizarre phenomenon - the feeling like you&x27;ve experienced something before, even when you haven&x27;t.
Read more »