7 Amazing Facts About the Human Body | You Mustn't Know!

7 Amazing Facts About the Human Body | You Mustn't Know!

Even though you've studied biology for years, I'm sure you don't know the following interesting facts about the human body

Do you like biology lessons? As a science that studies living things, of course you have learned a lot about the human body, right?

But wait a minute. Not all things about the body you can learn in biology books. Of course there are lots of interesting things that you don't know.

Some of these human anatomy facts will surely surprise you. For example, did you know that the human body shines? Or is the heart some kind of superhero? Or that you have more than five senses?

So, if you want to know more, watch this article until it's finished!

1. The liver is the only organ that can fully regenerate

The liver has many uses. Call it destroying toxins in the blood, producing protein, and helping the digestive process.

But you know, a damaged liver or liver can actually regenerate even though it has lost up to 70% of its original volume, you know.

According to the journal Nature Reviews Gastroenterology & Hematology, the liver is the only organ that can fully restore itself. Unlike the lungs, kidneys, and pancreas, which adapt to loss of tissue.

The liver is the only solid organ that uses a regenerative mechanism to ensure that the liver-weight ratio is always 100% of what is needed for body homeostasis.

2. The Human Body Turns On

Many say, pregnant women appear glowing or light up. It turns out that it's not just pregnant women, the human body in general does light up, you know.

All humans are lit, as are most living things. This occurs due to biochemical reactions related to metabolism. In humans, light emissions tend to be lowest at 10 a.m. and peak at 4 p.m.

However, you won't be able to see this light without special equipment. As one scientific article explained, "The intensity of light emitted by the body is 1,000 times lower than the sensitivity of our naked eye."

3. Humans Have More Than 5 Senses

During school, we are taught that the human body has 5 senses or what is commonly called the five senses. There are the senses of touch, smell, hearing, and also sight.

Apparently, humans have more than 5 senses, I'm not talking about the sixth sense that indigo children have to see ghosts.

Humans have several ways to feel the world around them, including:

  • Equilibrioception: Indra which functions to maintain human balance. These senses allow you to stand on one leg without falling.
  • Proprioception: The senses that allow a person to feel where a person's body parts are without having to look.
  • Thermoception: Senses that function to feel hot and cold. These senses allow a person to be able to feel the temperature of any object and react automatically.
  • Nociception: Senses that are able to respond to pain or something that could potentially stimulate danger or pain.
  • Chronoception: The senses that allow you to feel the passing of time and can guess how long you have been doing activities.
  • and many more.

There is also some research on whether humans have magnetoreception or the ability to sense magnetic fields. One 2019 study found that the human brain responds to these fields in the same way it responds to visual and audio stimuli.

4. The amount of human sweating is influenced by the temperature felt when the baby was born

Do you sweat so easily? It turns out that this is influenced by the temperature you experienced when you were a baby.

When exposed to the same heat or stimulation, the amount of sweat that an adult produces can vary from person to person.

Although everyone is born with about the same number of sweat glands, how many of these glands function depends on the temperature you experienced as a baby.

By the time a person is about two years old, their number of "active" sweat glands remains constant for life. As explained by Dr. Laure Rittie, a dermatology researcher at the University of Michigan Health System.

People who grow up in warm climates tend to have more active sweat glands than people who grow up in climate controlled (using air conditioning) environments or in cold climates.

5. The Heart Has Its Own Brain

According to a 2019 article published in Current Pain and Headache Reports, the heart has its own nervous system, dubbed the "cerebellum" or "cardiac brain," which contains about 40,000 neurons.

Signals from the "cardiac brain" point to the medulla, hypothalamus, thalamus, and amygdala and cerebral cortex. Thus, the heart sends more signals to the brainthan the other way around.

This intracardiac nervous system was first discovered in 1991 and is still being studied today. This is believed to help monitor heart health and may play a role in how the mind processes pain.

6. Yellow & Green Snot Caused by Stale White Blood Cells

A healthy body produces about 1.5 liters of mucus per day. The mucus is usually clear in color and is made up of water, protein, antibodies, and salt.

White mucus may be the result of infection, allergies, dehydration, or even consuming too much dairy. The mucus turns yellow when the body fights off infection due to a buildup of dead white blood cells.

These cells function to fight infection. When the task is done, the white blood cells will expire and come out with mucus.

The bigger the infection, the more white blood cells are needed. So, if you have a sore throat or a bad cold, usually your mucus is yellow to greenish in color.

7. 1 in 10,000 People Have Inverted Organs

Inverse Site is a very rare medical condition in which the arrangement of a person's internal organs is reversed.

For example, the left atrium of the heart and the left lung, which should be on the left, are instead on the right side of the body. Or for example, the liver, which is mostly located on the left side of the body, is instead on the right and switches positions with the stomach.

This condition only occurs in about 1 in 10,000 people (0.01%) and is relatively harmless if it is not accompanied by other medical complications.

This is my article regarding 7 interesting facts about the human body that are rarely known. How, you must be surprised when you read it?

See you again in my next interesting article!