The human body is a riddle about 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 about 70 billion cells they 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 are renewed over the course of a year.
Within a decade, our body undergoes almost complete regeneration. Some cells live for more than a century, like neurons.
7. Each navel is a universe of bacteria
sounds scary but there are thousands of bacteria in each navel and create their own ecosystem.
Scientists say it is a lot like a tropical 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 are located on the palate but disappear with age. Adults have around 10,000 recipients in the mouth, a number halved by age 60.
However, it was recently discovered that acid receptors are is also in the heart to help you recognize infections.
5. Stomach acid can dissolve iron
Our stomach contains hydrochloric acid. After warming 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 you had an argument a while ago and stopped seeing each other.
Now, looking back on the trip, 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 won’t hold on to these memories or go back to them. .
3. The milk content is adjusted to the baby
Breast milk contains hundreds of useful substances that help the baby to grow and develop immunity. Recently, it was discovered that milk changes its content and consistency to suit the baby during feeding.
The mother’s body analyzes the baby’s saliva to give it the “cocktail” it needs, changing it as it goes.
2. When you blush, your stomach does too.
Scientists recently claimed that the path to a woman’s heart It also goes 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 blushes with shame, the gastric mucus also turns red.
1. Everyone has UV vision.
Cataract treatment includes removing the lens of the eye, restoring 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 lenses that protect our eyes from ultraviolet rays.
Among mammals, reindeer have ultraviolet vision that helps them distinguish the fur of white polar predators and edible lichens in the snow.