NASA
Nasa: 1nd Century Explorer: How Would Your Body Change in Space?
This article explores the changes an astronaut's body goes through in space. Also find the answer to many other fascinating questions people have about space travel.
University of Wisconsin
The Why Files: High Living
The Why Files have provided an article that explores the health effects of space travel. The site focuses on life on a space station.
Discovery Education
Discovery Education: People and Space
Learn about the types of food that astronauts must eat while in space and how that food is prepared for space travel.