If you’re looking for fun facts that will blow your mind, look no further. Here are a few fascinating facts that you’ll want to share with everyone you know.
Learning about the world isn’t always easy, but reading articles about science, history, and more can keep kids interested in these subjects. These facts will also help them decide what fields they want to pursue in the future.
1. The human brain is 78% water
The human brain is the most complex organ in the body and is the command center for the entire central nervous system. It controls everything from the smallest cells to major processes like breathing and temperature regulation.
The human brain contains billions of neurons, or nerve cells. These neurons are connected by trillions of connections, called synapses, which allow information to flow between them at different speeds.
The human brain is surrounded by cerebrospinal fluid, which protects it from injury. It also helps the brain and spinal cord communicate with other parts of the body.
2. The longest human neck is 7.7 inches
One of the most fascinating facts that will blow your mind is the longest human neck. It can measure up to 7.7 inches long.
It is found among the women of the Padaung tribe, who live in the highlands of Thailand and Myanmar. They bind their necks with heavy brass rings that alter the shape of their neck and shoulders.
The neck isn’t actually stretching, but the collarbone and rib cages are pushed down, creating the illusion of a longer neck.
3. The human tongue is over a foot and a half long
The human tongue is over a foot and a half long. Its length is mostly divided by a vertical section of fibrous tissue (the lingual septum) into an oral part at the front and a pharyngeal part at the back.
The tongue is a complex mass of interlaced muscles that is covered with a mucous membrane. It is also surrounded by taste buds, serous glands that secrete saliva and aggregated lymphatic tissue (lingual tonsils).
4. The human cough travels at 60 mph
When you cough, you’re sending anywhere from 900 to 300,000 liquid particles soaring into the air. One study found that a moderate breeze sends the best of these nifty little droplets aloft as far as six feet, and they do it with style.
Despite the fact that this is not the first time that an aerosol has been touted as a good ol’ fashioned way to move about in the air, it is not clear how far these tiny wonders can travel without getting blown off course.
5. The human sneeze travels at 100 mph
A sneeze is your body’s way of expelling breath, mucus and other irritants from your nose and mouth. It happens when a tickling sensation in the nerve endings of your nasal cavity tells your brain that it needs to get rid of something.
It’s a powerful reflex that squeezes your chest and forces out air at a whopping 100 mph. It’s also a fast way to spread germs that can cause illness.
6. The human body is made up of 70% water
You’ve probably heard the age-old ’70 percent of your body is water’, but did you know it could be a lot lower? That’s because the amount of water in your body varies greatly by age, health and other factors.
The human brain is 78% water, while the lungs contain around 83% of their total weight in water. The kidneys, heart and muscles are also high in water content.
7. The human heart is made up of 80% water
Your heart is a powerful pump that constantly circulates blood throughout your body. It supplies the body with oxygen and nutrients, and it removes carbon dioxide and other waste products from the blood.
The human heart consists of four chambers: two on top, called atria (AY-tree-uh), and two on the bottom, called ventricles. Each has a wall that separates it from the other chamber, and valves to direct the flow of blood.
8. The human eye is made up of 70% water
The human eye is a sensory organ that responds to light, color and movement. It helps us to see, keep balance and maintain our circadian rhythm.
The visible front part of the eye includes the whitish sclera, a coloured iris and a dark hole in the centre called the pupil.
The pupil expands or contracts to control the amount of light entering the eye. This is done by the iris’s dilator and sphincter muscles, which are located in the eye’s middle layer.
9. The human body is made up of 70% water
Water is one of the most important components of your body. It helps maintain a healthy weight, flushes toxins and keeps your system running smoothly.
The human body is made up of 70% water. This figure varies depending on factors like age, health and water intake.
The brain, kidneys, heart, lungs and liver have the highest percentage of water. They’re all important for regulating body temperature, releasing hormones and ensuring blood pressure levels remain constant.