Space changes the human body in many ways. From bone loss to bloated faces, here's how microgravity and radiation affect the ...

Find out about the different stages of a human life cycle and how we change ... Discover how the food gets into the body, through the digestive system. What happens to food in your mouth?

Article continues below Space is a pretty hostile environment for the human body, meaning this prolonged stay on the space station likely had a significant impact on the astronauts' health ...

Any exposed liquid on your body will begin to vaporize. So the surfaces of your tongue and eyes will boil. Without air in your lungs, blood will stop sending oxygen to your brain. You'll pass out ...