22 Not-So-Pleasant Facts That May Change the Way You See the World

How do you calculate the age of your dog in human years? You probably just multiply it by 7, but that’s wrong. This myth comes from the 13th century, but we still believe in it today. Based on this example, scientists have proven that people are more likely to believe fake facts that seem real and fit the picture of the world they are used to, rather than new facts. Even if the new facts are 100% true, but seem to not be true.

We at Bright Side have read hundreds of studies proving that these 22 not-so-pleasant facts about humans and the world around them are true. But we still have a hard time believing that koalas eat excrement.

  • Fecal bacteria may get on toothbrushes if you don’t put the toilet lid down when flushing.
  • Feces can get through 10 layers of toilet paper that is not high-quality.
  • In human embryos, the anus is formed first and then the mouth, this is why people are in the deuterostome class.
  • Squeezing out pimples near the nose and the nasal folds may be extremely dangerous for your health. Scientists call this area the triangle of death, because it is directly connected to the brain through blood vessels, so an infection can spread very rapidly.
  • The main ingredient of perfumes is ambergris — a substance found in the digestive tract of sperm whales. Even after applying alcohol to it, it still smells a lot like feces.
  • Samples of beauty products in stores contain pathogenic bacteria that can cause eye and skin infections.
  • The British lose 99,000 liters of beer every year in their mustaches and beards.
  • Rap battles are not something that have appeared only recently. Telling each other insults in poems was popular in England and Scotland from the 5th to the 16th century.
  • In 2008, more than 50% of British teenagers thought that Sherlock Holmes was a real person and 25% of them thought that Winston Churchill was a fictional character.
  • The chance of dying in an accident (for example, while driving) is 5 times higher for southpaws than for righties.
  • By the age of 50-60, people lose about 50% of their taste receptors.
  • The human body doesn’t see the eyes as its own organ. But a special protective barrier doesn’t let the immune cells get to the eyes and destroy them. This is called the privileged immunity of organs.
  • In public swimming pools, there are on average 75 liters of urine.
  • The human body has as many bacteria as it has cells: about 10 trillion.
  • People that drink coffee regularly swallow about 140,000 insect fragments a year (most of them are completely harmless).
  • On the way to the top of Everest, there are at least 250 bodies of climbers that have died on the way. It is impossible to take them down because it is too dangerous. Some bodies even work as pointers: climbers can tell the altitude because they know where certain bodies are.
  • If you can smell something, it means that the molecules of whatever it is are already in your nose.
  • Despite the fact that cats transmit toxoplasmosis that can lead to brain damage, the risk of catching schizophrenia from a home pet is very low.
  • Puppies like squeaking toys because the sound reminds them of the sound of prey.
  • It would take 1.1 million mosquitos to drink all the blood of one person.
  • Sloths defecate only once a week because they have very slow digestion.
  • During the first months of their lives, koala cubs eat the excrement of their mothers: this is how they learn to digest the eucalyptus that they are going to have to eat.

Do you know any facts you would prefer not to know?

Preview photo credit Depositphotos
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