Changes in the Human Body in Space

Front

How does gravity affect blood and water in the human body on Earth?

Back

On Earth, gravity pulls blood and water down to our feet.

Front

How does gravity affect blood and water in the human body in space?

Back

In space, blood and water are pulled to the astronaut's head.

Front

What happens to an astronaut's face in space?

Back

An astronaut's face is often bigger in space due to the redistribution of fluids.

Front

How does the heart change in space?

Back

The heart can become smaller and weaker in space.

Front

What happened to Tim Peake's heart after spending 186 days in space?

Back

His heart was 20 years older when he returned to Earth.

Front

Why do astronauts float in space?

Back

Astronauts float in space because there isn't a lot of gravity.

Front

What happens to astronauts' leg bones in space?

Back

The bones in their legs become thinner and they lose calcium, making them more fragile.

Front

What special diet do astronauts have in space?

Back

Astronauts have a special diet that provides extra calcium.

Front

What happens to the muscles in astronauts' legs and back in space?

Back

The muscles become weaker and smaller very quickly.

Front

How much muscle can an astronaut lose after five months in space?

Back

An astronaut can lose 40% of their muscles after five months in space.