Cool Facts About the Human Body You Won’t Believe Are True
1.Each one of your eyes has a blind spot where the optic nerve exit your eye into your brain. You can’t see it because your brain tricks you not to see it.
2.Humans have on average, just as many hairs on their body as chimpanzees human hair is just a lot shorter and finer
3.39% of people have an extra bone in their knee, this has increased, as 100 years ago only 11% of people had this bone.
4.The body’s ph is 7.35 to 7.45 and if any of those scam products that promise to “change the ph of your body” actually worked, you’d be dead.
5.If you squirt cold water into someone’s ear with a syringe their eyes will automatically turn to the side that you squirted the water. If you use warm water, their eyes will automatically turn to the other side.
6.We have a fifth valve in our hearts that seals up right after we’re born. Apparently anything similar to that afterwards is a huge surgical procedure.
7.People who live in ‘extreme’ conditions for generations adapt in extreme ways. Eg people that live in high elevations often have larger lungs and different blood makeup.
8.The surface area of the lungs is about the same size as a tennis court
9.Your eyes have a different 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.
10.Always wondered why you voice sounds so different when it’s played back on a recording. Thats because it’s missing the low frequency you’re used to hearing. When you talk, you hear your voice as it goes to the air and back to your ear. It also goes through your skull to your ear, and this bone conduction mechanism transmits the lower frequencies better than air does. Your recorded voice only has the air transmitted sound. That caused a change between what you think your voice sounds like and what it really does.
11.Babies don’t get knee caps until 2-6 years old. In fact, if you looked at the skeleton of an infant, it would look very different from what you would expect.
12.The reason it feels weird when you or someone touches the inside of your belly button is because the nerves actually go to your spinal cord. This also relays information from your bladder and urethra to your brain. So when you push your belly button, you’re stimulating the same area.
13.There is a dominance in airflow between your two nose holes, and this dominance switches a few times per day
14.You process sound faster than sight. A great example of this can be seen by watching a professional drummer play, you can hear every beat he makes but can’t keep up wit how fast he moves his drumsticks.
You’ve just read, Cool Facts About the Human Body You Won’t Believe Are True. Why not read Manager Had To Hire A New Employee.