Do you explode in space if you do not were your space helmet in space?

Here is an answer to your question about space and the human body.
This is a serious question cause we have astronauts that go into space on a regular basis to repair and explore.
To best answer I am going to give you a website that has studies by NASA that explains what happens to you in space if you did not have a suit on.

Human Body in a Vacuum

Here is another link that talks about the effects of micro gravity and those who are in it like the astronauts for months at a time.
Effect of space on Human body

I hope this helps.

Stephen C.

Yes, because human's are made mostly of water and other substances that exert pressure which is suppressed by atmospheric pressure but without this pressure we would explode in fact we would explode before we suffocate.

Yes you will the gravity will make your head pop like a balloon and if it doesn't you still don't live to tell the story