Five things that happen to your body in space

Tim Peake is the first official British astronaut to walk in space. The former Army Air Corps officer has spent a month in space, after blasting off on a Russian Soyuz rocket to the International Space Station on December 15 last year, but the spacewalk will doubtless be his most gruelling test.

But what exactly will he be going through, during his remarkable spell aboard the space station? Space travel leads to many changes in the human body, many of which have been investigated since Yuri Gargarin made the first manned spaceflight in 1961 – and an extensive team provides guidance and preparation for astronauts before, during and after any spaceflight. But if you’re planning an out-of-this-world trip, here are some of the things to expect.

1) You get weaker

2) So does your heart

3) Fitness suffers

4) You lose bone

5) Your immune system suffers

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