Human Body Facts

Some Random Human Body facts, all of which will make much more sense as we progress through the year.

• When you blush, the lining of your stomach blushes too.


• Your brain edits out your nose in your vision.


• Synovial fluid, the fluid that eases joint movement, is one of the most slippery substances known to man.
• When a pregnant woman suffers organ damage (such as a heart attack), the fetus sends stem cells to the damaged organ to help repair it. (read more)

• Female gametogenesis begins in utero, which means that the egg that was eventually fertilized to create you probably first existed inside your maternal grandmother.
  


• Caffeine doesn't wake you up, it just suppresses the part of the mind that wants to sleep.


• The human intestinal tract is considered to be outside the body. When we form in utero, we start out as nothing more than a rectum. So from mouth to anus, it's just one long tube.
  


• The reason that men have nipples is because gender isn't determined until after the nipples begin developing in a fetus.


• Some tumors can grow teeth, hair, and bones. "And, very rarely, more complex organs or processes such as eyes, torso, and hands, feet, or other limbs" (read more)


• Human saliva contains opiorphin, a protein that acts three times more effectively as a painkiller than morphine.(also found elsewhere in the body)


• There are no muscles in your fingers, it's all moved by tendons that run through your hands/arms


• There is a significant portion of the population for whom, due to a genetic anomaly, cilantro tastes like soap


• We are the best distance runners in the animal kingdom. There's this thing called persistence hunting where people run after deer or other animals for miles until it gets too tired to keep going.


• A bite from a human will almost always get infected.


• That motion sickness is your brain thinking you've been poisoned.(Your inner eat senses that you're moving but your eyes don't see it. So the message that your brain receives is that you're hallucinating and you must have been poisoned so it tells your body to vomit out any poison.)


• In a human body, there are 10 times more bacterial cells than human cells.


•  Our brains have a limiter that prevent our muscles from reaching their full power because we could hurt ourselves, in the same way cars have governors that keep you from revving too high or going too fast. Some athletes have broken their bones by hypercontraction of their muscles.
  

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