Fascinating Body Facts I Can't Get Out of My Mind

A person's eyes are never really black, well, not until you get into a fight. But let's exercise civility. Although a lot depends on the lighting, some of us actually have a lot of melanin, thus the eyes may appear nearly black. Actually, people who are thought to have black eyes actually have very dark brown eyes.

An eyelash will always be around for 150 days. You could whip yourself with the approximately 3 inching world record for the longest eyelash. Tiny mites can also be found in eyelashes. Brown eyes are the most frequent color in the world. The interesting thing is that although they appear to be many different shades of brown, they are actually blue below. Every blue-eyed person in the world can trace their ancestry back to the same person.

Tears are composed of lipids, which are essentially water, oil, and mucus; they are not just salty water. Our tears' saltiness acts as an antibacterial agent. The human eye has 576 megapixels, compared to 200 megapixels in the nicest camera to date. For this reason, sunsets appear so much better in person than they do in pictures.

We blink at least once every eight seconds, or 4,200,000 times a year. If we received a cent for each blink, that would be awesome; we could earn over $100 a day. The renewal of all the skin cells takes around one month. Our skin sheds approximately 30,000 dead cells every 60 seconds, amounting to a yearly skin loss of 8 pounds. Compared to toenails, fingernails develop much more quickly. Since toenails are less damaged than fingernails, they develop nearly four times slower. Even though we frequently trip over our toes, a sharp spike in circulation rarely lasts long.

Depending on the individual, a human can generate anywhere from half a quart to one liter of saliva each day. That would fill a bathtub with saliva in a year. Wounds in our mouths heal much more quickly than wounds anywhere else, making saliva an ideal treatment. Taste is also a useful tool. Only after food has been dissolved by saliva are our taste buds prepared to detect it.

We may not realize it, but our bones are actually stronger than we may think. About 19,000 pounds can be supported by one cubic inch of human bone, making it four times stronger than concrete. Is that the origin of the phrase "Blockhead"? Our blood types are only varied because of the sugar. While O has no sugars, A, B, and AB types do, making it ideal for donors. No, sugar doesn't lessen the sweetness of O type blood; in fact, it draws mosquitoes more than other blood types do. While cows may have as many as 800 blood kinds, humans only have eight. Whoa, what a hoot!

We typically lose between 50 and 150 hairs every day. Hair has a five-year lifespan on average, and new hair grows right away from the moment an old one leaves your scalp. A copper wire of the same diameter is not as strong as human hair. A complete head can support up to 18,500 pounds when utilized appropriately, while a single strand can support up to 3.4 ounces of weight.

Contrary to popular belief, our stomachs can hold almost half a pound of food. The average in severe circumstances is about 32 ounces. Capacity is important since food dissolves metal and is digested in 4–6 hours. With almost a million nerve endings, lips are far more sensitive than fingers. As a result, they have 100 times the sensitivity of fingertips. Based on my calculations, I estimate that kissing is 100 times more effective than holding hands.

Similar to fingerprints, our lip prints are distinct due to their grooves and furrows. They also don't change during the course of our lives. By the way, your tongue print is distinct as well. Our belly buttons are home to a zoo of roughly seventy different kinds of bacteria. A few of them are also present in Japanese soil and even in microorganisms that are normally found near the polar ice caps. Yes, that's where your belly button is.

Our physical forms radiate light. Since the light we emit is 1,000 times less bright than the lowest level we can perceive, we are unable to notice it with our normal senses. Thus, you will have to put your trust in me. Only humans have the ability to blush; this reaction is brought on by an adrenaline rush. Beetle powder is used to make carmine, a red color used in lipsticks and blushes.

As we age, our eyes continue to enlarge. They also sweat, and one type of perspiration they create is earwax. The nose, incidentally, never stops growing, particularly when you're lying. The muscle that never tires is the heart. The aorta is enormous—it nearly has the same diameter as a garden hose. Our daily gas emissions range from 500 to 1,500 milliliters, sufficient to inflate a tiny balloon. It could be worth a try to gather the community and fill a balloon.

Our bodies use fat to absorb vitamins. When taken with fat, vitamins A, D, K, and E will absorb more readily. We have enough fat in our bodies to make seven bars of soap. If certain areas of the brain don't get enough nutrition, they may begin to devour their own neurons and proteins—a process known as self-cannibalization. The hypothalamus, for instance, can regulate your body temperature, appetite, and sleep patterns.
It's true that you cannot swallow and breathe at the same time. You just tried, I know that. When you inhale, the pharynx serves as a passageway for air, and when you swallow, it facilitates food. Your brain would have the appearance of a pillowcase if all of its wrinkles were smoothed out. The brain has the capacity to generate enough energy when we are awake to run a 10-watt light bulb.
You have enough bacteria in your body to fill a container. Approximately 3 to 5 pounds, or 2% of our total weight, are made up of bacteria. Even so, the majority of them are leftovers. The typical body temperature is between 97 and 99 degrees Fahrenheit. The highest temperature ever measured was a dangerous 115°F. Although it is the smallest finger, your pinky finger accounts for 50% of your hand strength.

There are roughly 20,000–25,000 genes in one individual. It seems amazing, doesn't it? However, compared to wheat, cornflakes have more genes. 1, human: flakes of corn. Luckily, this time the focus is on sophistication rather than quantity. Iron is one of the many chemical components that make up humans. Three one-inch nails might be made from the iron in our bodies. Our bodies contain enough carbon to make 900 pencils.

The superpower of regeneration resides in our liver. It can regrow to the proper size for your body if any portion of it was removed. Your organs are actually thrown around on a roller coaster. Your stomach is actually falling inside of your body when it feels like it is. Identical twins have nearly identical smells, despite the fact that each person has a completely distinct scent. They must have the same genes, which explains why.

By the time you age sixty, you'll have lost nearly half of your taste buds, so perhaps this is the year you finally start eating broccoli. As you age, your sense of smell also becomes less keen. You expel air when you cough at a speed of roughly 60 mph. The largest and one of the largest organs in our body, the skin can weigh up to nine pounds. Our skin covers around twenty square feet, if we could spread it completely out.

It takes two steps to cure hiccups. A muscular spasm causes you to inhale heavily at first, and then all of a sudden your airways close. The renowned sound enters through the obstructed air. When we sleep, we stop smelling. Because of this, it's quite difficult to detect a gas leak when you're sleeping at night. Since noise can interfere with sleep, we are limited to sound. Smell is the most acute sense of all, unless you're asleep. After a year, we can recall 65% of smells, but in the last three weeks, we can only recall 50% of them. Because the cells in our noses are replenished every four weeks, we also receive a new nose every 28 days.
Again, when it comes to taste, we largely rely on our sense of smell because it can detect up to 95% of the flavor. It'd be difficult to distinguish an apple from a turnip without scent. Even though a bouquet of flowers can smell nice to you, some people have cacosmia, which causes them to think that all smells are offensive. Our ears are necessary for balance in addition to hearing. Our inner ear is home to our vestibular system. Your inner ear canals are filled with fluid and microscopic sensor hairs that aid with balancing.
You can attribute red eyes in a photo to bouncing light. That effect is produced when the flash bounces off your eyes' capillaries. Lastly, every bone in our body—aside from the hyoid—is related to every other bone. One of the least likely bones to break is this one, which supports your tongue.