The answer is very complex, since it depends a lot on the conditions of exposure to space. Generally speaking, however, it comes down to being able to breath. A human exposed to the vacuum of space (but not in direct sunlight) will suffocate long before any other negative effects become apparent. In fact, if you read up on the deaths of the cosmonauts of Soyuz 11, you'll find that the first people to find them were not aware they were dead.
After suffocation, the next most likely problem is hypothermia or hyperthermia. If the body isn't in direct sunlight, it will slowly cool down, but the predictions say this could take a bit. In direct sunlight, the opposite is true, although it's believed the heating would be much faster. So far, however, nobody has volunteered to test either of these situations.
Simply put, if you've got to go out into space, bring a space suit. If you can't bring a whole suit, at least bring a way to breath and stay out of the sun. Do that, and you've probably got a few minutes.
In space, the human body experiences changes like muscle and bone loss, fluid shifts, and weakened immune system. To adapt, astronauts undergo exercise routines, use special equipment, and follow strict diets to maintain their health in the unique space environment.
In space, a human body experiences changes due to the lack of gravity. These changes include muscle and bone loss, fluid redistribution, weakened immune system, and potential vision problems. Astronauts must exercise regularly and follow strict health protocols to mitigate these effects.
The sixth intercostal space can be found between the sixth and seventh ribs on the side of the human body.
The human body is mostly composed of cells, tissues, and organs, which occupy physical space. However, at a microscopic level, there is more space between atoms and molecules than actual matter, so in that sense, some physicists estimate that about 99.9999999% of the human body is "empty space."
That makes no sense!
They are crushed
Well you die.
I think that the body can get very sick and explod!
Most of the water in the human body is located within the intracellular space, which is the fluid found inside the cells. Approximately two-thirds of the body's total water content is contained in this space. The remaining water is distributed in the extracellular space, which includes interstitial fluid and blood plasma.
When UV strikes human body, it causes:Skin cancerEye cataractSuppression of immune system.
you die
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