Space medicine
（重定向自Space physiology）
![Dan Burbank and Anton Shkaplerov participate in a medical contingency drill in the Destiny laboratory of the International Space Station. This drill gives crew members the opportunity to work as a team in resolving a simulated medical emergency on board the space station.[1]](/Images/godic/202502/12/NASA_Medical_Monitoring_22817.jpg")
![The effects of microgravity on fluid distribution around the body (greatly exaggerated) (NASA)](/Images/godic/202502/12/Space_body_fluid.svg2817.png")
![Comparison of Radiation Doses - includes the amount detected on the trip from Earth to Mars by the RAD on the MSL (2011 - 2013).[23][24][25][26]](/Images/godic/202502/12/PIA17601-Comparisons-RadiationExposure-MarsTrip-201312092817.png")
Space medicine is the practice of medicine on astronauts in outer space whereas astronautical hygiene is the application of science and technology to the prevention or control of exposure to the hazards that may cause astronaut ill health. Both these sciences work together to ensure that astronauts work in a safe environment. The main objective is to discover how well and for how long people can survive the extreme conditions in space, and how fast they can adapt to the Earth's environment after returning from their voyage. Medical consequences such as possible blindness and bone loss have been associated with human spaceflight.