If you were to go into space without a helmat, how soon would your head blow up?

Question

If you were to go into space without a helmat, how soon would your head blow up?

Answer 1

You would die from lack of oxygen to your brain before that happened.

Answer 2

Probably before you got there.

Answer 3

I like how everyone answered this all seriously, most other sections on Y!A would have ripped her a new one, I mean 'helmat'? C'mon!

Answer 4

No exploding.

Answer 5

depends on how low someones iq is

Answer 6

about 1500 feet.

Answer 7

If you mean if I were to exit a spaceship when it was in space, my head wouldn't explode.

I would suffocate first.  

Humans and animals exposed to vacuum will lose consciousness after a few seconds and die of hypoxia within minutes.  Blood and other body fluids boil when their pressure drops below the vapour pressure of water at body temperature.

But rapid decompression is more dangerous than vacuum exposure itself.  Even if I held my breath, venting through the windpipe may be too slow to prevent the fatal rupture of the delicate alveoli of the lungs.  Eardrums and sinuses may be ruptured by rapid decompression, soft tissues may bruise and seep blood, and the stress of shock will accelerate oxygen consumption leading to hypoxia.

Answer 8

Even after you are dead, your head doesn't explode. Your head has considerable structural integrality.

Answer 9

Minutes, because the pressure exerted by your body meets no equilibrium being pushed at you resulting in you literally popping