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Human Health Countermeasures

The Human Health Countermeasures (HHC) element seeks to understand the physiologic effects of spaceflight and develop strategies to mitigate those with detrimental effects on human health and performance.

NASA astronaut Anne McClain exercises in the Node 3 module.

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The Human Health Countermeasures (HHC) element provides biomedical expertise for the development and assessment of medical standards, vehicle and spacesuit requirements, and strategies that ensure crew health during all phases of flight.

If being in space is found to affect crewmember health in negative ways, HHC is tasked with developing safeguards to mitigate those effects. 

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Credit: NASA
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NASA Harnesses US Navy Spinning Device to Simulate Spaceflight

A monster of a machine is now allowing NASA scientists to study on Earth the disorientation that astronauts may encounter…

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Space Nutrition

Astronauts require food that is nutritious, appetizing, long-lasting, easy to make, and more. We strive to continuously improve the quality of space food and to satisfy the dietary needs of crew members on increasingly longer and more distant spaceflight missions.

Scientists are working hard to better understand why vision changes occur for some astronauts in microgravity, while continuously developing strategies to counter those changes.

Focusing on Crew Health

From studies that examine bone and muscle loss in space to attempts to characterize the microbial environment of the International Space Station, NASA scientists are examining how to best ensure crew health and safety.

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The Human Body in Space

For more than 50 years, NASA’s Human Research Program (HRP) has studied what happens to the human body in space. Researchers…

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