Disturbing simulation shows what would happen to someone in space without a spacesuit

An odd simulation revealing what would happen to someone in space without the safety of a space suit has terrified viewers.

The bizarre clip was posted on YouTube by DG EYE science, and reveals exactly how our bodies would react if we were in the unforgiving vacuum of space with no protection.

Space suits are made with the finest technology to protect us from the harsh environment that is space, and to be lost in space without one might be a lot of people's worst nightmares.

Luckily, they detail that you 'probably wouldn't explode', which is good news, but what happens instead is just as shocking. Take a look:

Apparently, in the first few seconds without a space suit, the gases in the human body would begin to 'expand', causing ruptures in the lung tissues.

In just five seconds, the 'water on the surface of eyes, skin and mouth' would start evaporating as the water in your blood begins to 'boil'.

Watching the video closely, viewers will notice the body swelling up and growing in size, as the skin is 'elastic and strong enough to withstand pressure'.

After all of this, the heart will then 'slow down and stop' as the individual floating around in space dies of asphyxiation.

Going into space without a spacesuit wouldn't cause you to explode, despite popular belief (YouTube/@DGeye)

There's no atmosphere or pressure in space, and in the absence of pressure, water within our bodies would boil, turning from a liquid into a gas.

Considering as humans we are two thirds water, this is kind of a big deal.

"As you can imagine, given that 60 percent of the human body is made up of water, this is a serious problem," Dr. Kris Lehnhardt, element scientist for the Human Research Program at NASA, told Live Science.

"In essence, all of your body tissues that contain water will start to expand."

One astronaut who came close to experiencing this was aerospace engineer at NASA, Jim LeBlanc.

After your body swells up, you would die (YouTube/@DGeye)

In 1966, he was testing the performance of spacesuits in a vacuum chamber. At one point, the hose which supplied pressurised air into his suit was disconnected.

LeBlanc explained that he started to feel the effects before he eventually blacked out.

"As I stumbled backwards, I could feel the saliva on my tongue starting to bubble just before I went unconscious, and that's kind of the last thing I remember," he explained in documentary series, Moon Machines.

Considering how horrifying this is, it's kind of surprising that people *want* to venture into space.