Sci-Tech

WATCH | How does space travel tamper with the human body?

The human body was not built for space flight.

FILE PHOTO: A NASA astronaut is seen as the Earth's surface passes by in the background on the International Space Station, in this handout photo taken February 21, 2015, provided by NASA. REUTERS/NASA/Handout (OUTER SPACE - Tags: ENVIRONMENT SCIENCE TECHNOLOGY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS/File Photo
FILE PHOTO: A NASA astronaut is seen as the Earth's surface passes by in the background on the International Space Station, in this handout photo taken February 21, 2015, provided by NASA. REUTERS/NASA/Handout (OUTER SPACE - Tags: ENVIRONMENT SCIENCE TECHNOLOGY) FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. IT IS DISTRIBUTED, EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS/File Photo (NASA NASA)

The human body was not built for space flight.

With microgravity conditions, exposure to high-energy radiation and other factors, trekking beyond the friendly confines of Earth causes many physiological changes that affect the health of an astronaut.

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