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en.wikipedia.org/wiki/Effect_of_spaceflight_on_the_human_body

Humans venturing into the environment of space can have negative effects on the body. Significant adverse effects of long-term weightlessness include muscle atrophy and deterioration of the skeleton (spaceflight osteopenia). Other significant effects include a slowing of cardiovascular system functions, .... Space Shuttle astronauts wore a fitted elastic garment called a Crew Altitude ...

www.space.com/26903-astronaut-immune-systems-in-space.html

Aug 22, 2014 ... New research led by NASA shows that spaceflight confuses the immune system.

www.nasa.gov/content/study-reveals-immune-system-is-dazed-and-confused-during-spaceflight-u

Studies of how space flight affects the immune system may provide benefits to ... This mission was the first of its kind to last 45 days, as well as incorporate sleep ..... Stenger are working together to solve eye and vision problems for astronauts.

www.nasa.gov/hrp/bodyinspace

Jan 31, 2017 ... NASA has learned that without gravity working on your body, your bones lose ... If you don't exercise and eat properly, you will lose muscle strength, .... to identify how your immune system changes in space by analyzing blood, ... On the space station, astronauts receive over ten times the radiation than ...

io9.gizmodo.com/why-do-our-immune-systems-falter-in-space-1668217291

Dec 8, 2014 ... The exact mechanism behind why our immune systems become less ... What is known, though, is that 1) Astronauts have better immunity on Earth than in space, and ... (and happily reversible) impacts to how well immune systems work. ... Doesn't our immune system rely heavily on bone marrow, and don't ...

www.nasa.gov/mission_pages/station/research/news/functional_immune

European Space Agency astronaut Andre Kuiper, shown here in the Human ... includes investigators from the NASA Space Radiation Laboratory, as well as external ... Knowing how the immune system functions in flight will guide the way toward ... “On Earth, you usually don't go to the doctor until you get sick,” said Crucian.

science.time.com/2012/10/22/dont-sneeze-in-space-when-astronauts-get-sick

Oct 22, 2012 ... Few people had a worse time in space than the crew of Apollo VII. ... Mermel began his work by surveying the health records of astronauts across the 30 ... and skin infections, as well as flu-like illnesses and viral gastroenteritis. ... the immune system can go on the fritz in space: wounds heal more slowly; ...

phys.org/news/2017-04-effects-spaceflight-immune.html

Apr 5, 2017 ... Studies have shown in microgravity there are immune system modifications. ... European Space Agency astronaut Andre Kuiper, shown here in the Human ... nutrition, and exercise as well as pre-flight quarantine of astronauts, ... "On Earth, you usually don't go to the doctor until you get sick," said Crucian.

www.ucsf.edu/news/2010/03/4388/space-station-experiment-will-probe-failure-immune-system-space

Mar 31, 2010 ... In April 2010, personnel aboard the International Space Station plan to carry out an ... why the immune system's T cells stop working in the absence of gravity. ... the body's ability to mount an immune response on earth, as well. ... known that about half of our astronauts develop suppressed immune systems, ...

www.lpi.usra.edu/education/explore/space_health/background

Astronauts need well-balanced diets as well, but they face some special challenges ... vitamin D. To work outside in the space environment, astronauts have to wear space ... Because astronauts don't need as much muscle and bone in space, their body .... a necessary vitamin for bone production and immune system health.