Space top 5: Effects of space on the human body

In 2015 NASA astronaut Scott Kelly and Roscosmos Cosmonaut Mikhail Kornienko will embark on a yearlong mission on the International Space Station. So we thought we'd take a look at the top 5 effects of long term exposure to space on the human body. Muscle Atrophy Getting around in micro gravity requires practically no physical exertion. Inhabitants of the space station can get around by gently pushing a wall with one finger and thus their muscles begin to deteriorate quickly. Diminished bone densit

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