Most USELESS Human Body Parts!

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Origins Explained
Published at : 18 Nov 2020
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Check out the most useless human body parts! From your appendix to wisdom teeth, the parts of the human body in this top list are absolutely obsolete!

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13. Wisdom Teeth
Wisdom teeth are the third and final set of molars that most people get in their late teens or early twenties.

With all the money spent on removing them and all the pain that one has to endure during the process, it’s

frustrating to know that wisdom teeth don’t serve any practical purpose. They are simply the remnants our

ancestors’ teeth, who had larger jaws than we currently do. The reason why wisdom teeth have no use anymore is

because human jaws have become smaller as they evolved, leaving little space for wisdom teeth to grow in

comfortably. Another theory suggests that early humans used to lose their teeth quickly as they aged, so wisdom

teeth could take the place of lost teeth and allow them to eat normally (and thus survive) for longer. Now they

just cause all kinds of problems if they are misaligned such as jaw and nerve damage as well as infections that

can be extremely painful.
12. Body Hair and Arrector Pili
We all know about body hair, but what exactly are arrector pili? These are the smooth muscle fibers that give

humans the peculiar sensation we commonly call “goose bumps”. If the arrector pili are activated, hair that come

out of the nearby follicles stands up, giving us those famous goose bumps on our skin. Goose bumps are important

to certain animals (like cats), which use those hairs on the body to swell up and make themselves look ‘bigger’

than they actually are. But human body hair is so small and fine that it does little more than give us a shiver,

or let us know that something is frightening us!
Yes, you can say that body hair protects us from the cold, and the hair on our head may help you look stylish,

but that’s about it for legitimate functions of human body hair and arrector pili.
11. Eyebrows
The evolutionary purpose of eyebrows is debatable: In one camp, scientists believe brows keep sweat and rain off

your eyes, which would help in primitive hunting and navigation. Moreover, diverting the sweat away is also

beneficial as the salt in sweat irritates the eyes, making them sting.
Other scientists favor the hypothesis that eyebrows serve to communicate your emotions, but they may also

communicate your identity.
Behavioral neuroscientists from MIT found that people were less likely to recognize pictures of celebrities

without their eyebrows than without their eyes.
The researchers speculate that eyebrows have remained because they’re crucial to identifying faces and

navigating social circumstances.
10. Tailbone/Coccyx
Although we don’t sport these animalian appendages anymore, our ancestors once had tails. Tails were used to

maintain balance while we walked, but as the human body evolved, the need for a tail disappeared.
The tailbone, or coccyx, is situated at the end of the spinal cord. When we did have tails, this part of our

anatomy was vital to our survival and balance. However, as tails disappeared, so did the functions of the

tailbone. While we don’t really need it, it has been suggested that the coccyx helps to anchor minor muscles and

may support the pelvic organs, so, it’s better to not underestimate its existence in the human body.
mostuselesshuman

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