Most USELESS Human Body Parts!

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! Subscribe For New Videos! http://goo.gl/UIzLeB Watch our "Things You DIDNT Know About EVERYDAY Objects!" video here: https://youtu.be/rYv9QpvY914 Watch our "Things You're Doing WRONG!" video here: https://youtu.be/Aq7NN6Uad6s Watch our "Most INTERESTING Facts About Blood!" video here: https://youtu.be/CGDX6bcMiwg 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.