Body Organs
The lining of the stomach is replaced once a week.
True or False
True!
After you swallow food, the digestive system gets into action. The food goes to the stomach, where the digestion starts. Interestingly, the lining of your stomach is being replaced once a week. If not, it will digest itself.
Some people can hear the sound of their own eyeballs moving.
True or False
True!
The ability to hear the sound of their own eyeballs moving is called “superior canal dehiscence syndrome.” Every time these people’s eyes move in their sockets, they can hear a sound like scratching sandpaper. Other than this, some people can also hear every sound within their bodies.
The fastest muscles in our human body are found in your tongue.
True or False
False! It's in the eyes!
They are called “extraocular muscles.” These muscles let both of the eyes flick in a similar direction in a matter of 50-millisecond movement.
More than 5,000 miles of blood vessels are inside the human body.
False! It's 100,000 miles!
If these blood vessels were laid out, they would measure more than 100,000 miles. This measure could circle the globe.
Some people have internal organs reversed from normal positions.
True or False
True!
One in 10,000 people has mirrored or reversed internal organs from their normal positions. This is an example of human differences. The condition is known as “situs inversus.”
Only one kidney is necessary to live.
True or False
True!
Your kidneys are responsible for getting rid of waste products from the blood. What if you lose one? Don’t worry, even only one kidney can keep you living.
You can detect up to 1 million smells.
True or False!
False! It can detect 1 trillion smells.
Your nose can detect up to 1 trillion smells (billion times 10, a lot ah?). Besides, women are known to have a better sense of smell compared to men.
Your body is composed of more than 200 muscles.
True or False
False! 600 Muscles!
The strongest muscle is located in the jaw, which is called “masseter muscle,” the weakest is found in the middle of the ear and called “stapedius muscle.”
About 100 different species of bacteria are found on your skin.
People with blue eyes can tolerate higher alcohol.
True or False
True!
Having blue eyes means that you have higher alcohol tolerance than other eye colors. Not only that, but you also have higher rates of alcohol dependency and abuse.
Your stomach cannot dissolve metal.
True or False
False!
The acid found in your stomach is so strong that it can dissolve metal. Good thing, the lining of your stomach can tolerate it. So, do not be surprised that your stomach can dissolve razorblades.
Your eyes can detect light more than 1.7 miles away.
True or False
True!
Your eyes are very powerful that it can detect candle flame more than 1.7 miles away.
Your feet have 5 bones.
True or False
False! 52!
Another point concerning the bones is that 25% of them are likely to be found in the feet. There are 52 bones found in your feet.
Tiny mites are living in the eyelashes.
True or False
True!
Your eyelashes serve as protection against particles that may enter your eyes. These little mites are usually harmless and live anywhere as long as there are hair follicles. You can find them in other body parts. As you get older, these tiny mites grow in number.
The human ear is self-cleaning.
True or False
True!
Your ear can clean itself, thanks to earwax. This yellow gunk is not actually dirt in your ears. Plus, it is actually a type of sweat. It is responsible for keeping your ears clean. It can also protect your ears against bacteria.
The brain does not feel any pain.
True or False
True!
Another function of the brain is to process pain signals. The crazy thing is that the brain itself does not feel any pain. Well, discovering this fact does not hurt your brain, right?
The human tongue is covered in about 1,000 taste buds.
False 8,000 taste buds!
Your tongue is covered in approximately 8,000 taste buds. Each of them contains about 100 cells, which can help you taste the food better.
The human skeleton can replace itself.
True or False
True!
Your skeleton does it every ten years. Literally, you are not the same human you are in your 40's.
Your big toe can bear 40% of your body weight.
True or False
True!
Humans have a weight-bearing toe. Your big toe can carry more weight compared to other toes. It can bear approximately 40% of your total weight.
The human body has no ability to digest grass.
True or False
True!
Your body does not have what it take to breakdown the cellulose that can be found in the plant. Not only that, grass contains plenty of silica, which is an abrasive that can quickly wear down your teeth. So, please never try a grass diet.
Your liver can completely regenerate itself.
True or False
True!
The vascular glandular organ, liver, secretes bile. It is also ONLY the human organ that can completely regenerate itself. However, you still need to take care of it.
The fastest human sense is hearing.
True or False
True!
Your brain can recognize a sound as little as 0.05 seconds. That is 10 times faster compared to a blink of an eye.
Your bones are stronger than steel.
True or False
True!
Ounce for ounce, your bones tend to be stronger than steel. In fact, every cubic inch of bone is known to bear a load of 19,000 pounds, which is about the weight of 5 pickup trucks.
Your pinky finger can bear about 50% of the hand strength.
True or False
True!
If not because of your pinky finger, you are about to lose 50% of the hand strength. While your middle and index fingers team up with your thumb in grabbing or pinching, your pinky fingers function together with a ring finger to have grip power.
You can tell if a person is telling a lie by observing the frequency of his or her blinks.
True or False
True!
If they are telling a lie, they tend to blink less frequently than normal. After the lie is told, he or she will blink about eight times than normal.