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The human body may be responsible for providing us with animated life and the unique wonders of human consciousness, but that doesn't mean we know what the heck is going on in there.


In fact, so many of the human body's inner workings are unknown to us who own and use that complicated apparatus every moment of every day.

We have, of course, made some real strides in understanding those inner workings over the last couple thousand years. We may have plenty more to learn, but at least we have a general lay of the land.

Curious to learn about the lesser known-processes of our complex physical selves, Redditor Zenssei asked:

"What is a fact about the human body that not many people know about?"


For complexity, look no further than the human brain. Redditors had no shortage of facts and tidbits about that one-of-a-kind organ.

Autopilot

"Most reflexes never make it to your brain. The sensory aspect travels to the spinal cord and the spinal cord itself sends the muscle movement signals to your limbs."

-- thundermuffin54

Keep On Kicking

"Your brain continues to try to revive the body long after the heart has stopped. In some cases 30 hours later there has been found brain activity trying to make repairs to bring the body back."

"This is used to indicate time of death in murder victims."

-- flamingphoenix9834

Filling In the Gaps

"Your brain likes stimulation, if it doesn't get any it will make some up, some people are more susceptible to it then others, the colors you see before you fall asleep are a common mild occurrence..."

"...there are several classes of these hallucinations, closed-eye visuals, which are caused by leaving your eyes closed for a long time, hypnagogia, which is caused by the onset of sleep, prisoners cinema, which is caused by looking into a dark place for a long time, ganzfeld effect, which is caused by blocking out all external stimuli, and Charles bonnet syndrome, caused by sight loss."

"Most are these are simple phosphenes but some can be whole imagined scenes, or more abstract fractal-like imagery"

-- NoCommunication7

Others reminded us that not all bodies are the same. They pointed out the anomalies that some people experience, but on average do not describe the typical human body.

Extra Bumpy

"Apparently about 20% of people have a bony ridge on the roof of their mouth. Most people's pallettes are smooth with a very slight ridge."

"The 20% like me have an exaggerated and more pronounced ridge. Apparently it's most common in women and Asian folk, and I'm neither so that's neat. I always thought it was totally normal."

-- Alagane

A Reason Not to Move

"People who live in 'extreme' conditions for generations adapt in extreme ways. For example people that live in high elevations often have larger lungs and different blood makeup."

"Or my favorite is the Bajau people that live on the water and spend a lot of their time diving, their spleens have become 50% larger in order to store more blood."

-- localhelic0pter7

C'mon, 207!

"39% of people have an extra bone in their knee. 100 years ago only 11% of people had this bone." -- Cruithne

"I drunkenly tripped off the curb and into the road after a Halloween party in college. Turns out I broke off a piece of my elbow that night."

"It ended up getting encased in what ever the human body used to trap floating bone chunks in. Now I've got a chunk of bone gift wrapped by my own body's wrapping paper floating around, right against where it broke off from." -- Tur8z

And others felt the thread was a good place to share the truly bizarre, random facts they knew about the body. Read a few of these and you'll realize just what a mystery it all is.

Shake It In to Place

"When doing surgery were the doctors have to take out some organs, when placing them back, they dont have to be put back In the exact position there meant to be, your body kind of just, moves the organs into the correct position after the surgery"

-- IamaJarJar

Disoriented Cells

"There are tiny cilia that spin in a certain direction. If they spin in the opposite direction while you're developing in the womb early on, that is how you get organs transposed onto the opposite side of your body."

-- gurgleslurp

Brain 2.0

"Your stomach is surrounded by more brain cells (half a billion neurons) than the brain of a cat contains in total."

"It's your enteric nervous system. It controls digestion, operates autonomously, has its own memory, can handle its own reflexes, it has its own senses even."

"It's thought to have come about because of the blood-brain barrier and the main brain being locked away in the skull, a spinal column and nerves away from the critical action of nutrition."

-- Hattix

Alienated Eyes

"Your eyes have a separate immune system from the rest of your body and in a lot of occasions if your body's immune system finds your eyes, they will assume they are a foreign body and blind you."

-- SlavicSquat1234

So next time you think you have a good idea of all that's going on under the hood, just remember that whole layer of microscopic processes that seem to be playing by their own rules entirely.

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