The human body is a riddle upon a riddle. So many things happen inside of us every day and we have no idea! We collected several impressive facts about the human body that seem like science fiction at first glance.
8. Almost Complete Regeneration Every Decade
Every day around 70 billion cells die in our body and we don’t even realize it. A new intestinal tract appears every 3-4 days; red blood cells die every 3 months; kidney cells renew themselves over the course of a year.
In a decade, our body experiences almost complete regeneration. Some cells live for more than a century, like neurons.
7. Every Navel Is A Universe Of Bacteria
It sounds scary, but there are thousands of bacteria in each belly button and they create their own ecosystem.
Scientists say it looks a lot like a rainforest: the flora is in balance and certain types of bacteria are dominant. Each belly button has its own set of bacteria and its own ecosystem.
6. Taste Receptors Are Located In The Heart
Babies have so many taste buds that some of them situated on the palate but disappear with age. Adults have about 10,000 receptors in their mouths, a number cut in half by age 60.
However, it was recently discovered that acid receptors are also found in the heart to help it recognize infections.
5. Stomach Acid Can Dissolve Iron
Our stomach contains hydrochloric acid. After heating the stomach acid to 37 ° C, scientists placed iron blades and an alkaline battery in it.
After 24 hours, the blade lost 63% of its mass, while the battery withstood the attack for more than a day.
To sustain these loads, our bodies must produce new gastric cells before the acid destroys the old ones.
4. Emotions Create False Memories
If you trust your memory, we have bad news for you. Our memories change every day, depending on our current emotional state.
For example, you had a great trip with your best friend last year, but a while ago you argued and stopped seeing each other.
Now, looking back at the journey, you’ll feel like it wasn’t so good after all – your brain will find (or even make up) something wrong with it, so you don’t seize on these memories or return to them.
3. The Contents Of Milk Adjust For The Baby
Breast milk contains hundreds of useful substances that help the baby grow and develop immunity. Recently, it was discovered that milk changes its content and consistency to adapt to the baby during feeding.
The mother’s body analyzes the baby’s saliva to give it the “cocktail” it needs, changing it on the go.
2. When You Flush, Your Stomach Does Too
Scientists recently stated that the path to a woman’s heart also passes through the stomach.
We are kinder when we are satisfied; we feel cold in the belly when we are in love; And when a person is flushed with embarrassment, the gastric mucus also becomes red.
1. Everyone Has UV Vision
Cataract treatment includes removing the lens from the eye, returning ultraviolet vision to many patients (this is exactly what happened to Claude Monet).
We don’t need that ability under normal circumstances, and nature has created the lenses that protect our eyes from ultraviolet rays.
Among mammals, reindeer have an ultraviolet vision that helps them discern the fur of white polar predators and edible lichens in snow.