14 surprising and frightening facts people have recently learned

Life isn't just about cute animals, fun artwork, and helpful stories. Our world is full of inconvenient historical and scientific facts that will make anyone feel awkward and a little nauseous. However, we think that facts are facts: we have to do our best to see the big picture, even if we don't feel too rosy and comfortable reading certain things.

We have collected the most "incoherent" facts about life on planet Earth, which Internet users have shared. Scroll down to read. While we must warn you, these facts really aren't for the faint of heart.

14 PHOTOS

1. When your skin turns red from spending too much time in the sun, it is mainly because your skin cells are committing suicide to avoid becoming cancerous.

2. The youngest person who ever gave birth to a child was a Peruvian girl, Lina Medina, a Quechua Indian, who gave birth to a child in 1939 at the age of 5. She has premature puberty and her first period started at eight months of age. She may have been raped at a depraved indigenous religious festival, where people often brought small children, and there have been cases of rape. The man who raped her was never found, and she was silent about how she became pregnant. The delivery was performed by cesarean section, as vaginal delivery was considered impossible. Her son was told that he was her younger brother and she treated him that way too.

3. There is a whale named 52 Blue that only sings on this frequency, which means it cannot communicate with other whales. He was nicknamed the loneliest whale on the planet.

4. Fatal familial insomnia exists. It is a rare, incurable prion brain disorder that gradually destroys your brain's ability to sleep. Eventually, you stop sleeping altogether, you go crazy, you have convulsions and you die.

5. A cerebral aneurysm can occur in anyone at any age. Regardless of your health condition.

6. Most animals will kill you before they eat, bears will just start eating you.

7. There are more slaves today than at any other time in history.

8. Your voice on recordings is how your voice actually sounds. Your voice in your head is a little muffled and deeper because the sound travels through your head and not through the air. This is why it is so strange to hear your own voice on a recording.

9. Only one in 1000 sea turtles born live to adulthood.

10. One day the last person who knew your name will die and you will be forgotten.

11. There are 36 calories in a human tooth.

12. The most common cause of death for tall people is a heart attack, caused by the fact that their hearts naturally have to work harder than usual to circulate all this blood throughout the large body.

13. According to quantum mechanics, there is a small chance that the entire Universe will suddenly disappear in the next 5 seconds, there is also a small chance that the Universe, Earth, all people, buildings, the entire Internet, your knowledge about everything, about your personality, your memories, your existence, etc. was created just 1 second ago.

14. In the US, only 2 states have banned child marriage. One of them just passed the law a few weeks ago. 23 states don't even have an age limit for marriage.