In short, it wrecks it: http://www.nasa.gov/mission_pages/station/research/news/T_Cell http://www.nasa.gov/mission_pages/station/research/news/T_Ce... http://

In short, it wrecks it: http://www.nasa.gov/mission_pages/station/research/news/T_Cell http://www.nasa.gov/mission_pages/station/research/news/T_Ce... http://www.nasa.gov/content/study-reveals-immune-system-is-dazed-and-confused-during-spaceflight-u http://www.nasa.gov/content/study-reveals-immune-system-is-d... http://www.space.com/4302-stresses-immune-organs.html http://www.space.com/4302-stresses-immune-organs.html