At the moment, the population of our planet is approaching the mark of 7.8 billion people, and exactly 2 years later it will reach the mark of 8 billion. At the same time, men, contrary to popular belief, though not much, but more than women (about 1% ) And this is not the only error that we take on faith. For example, many are still convinced that a lie detector can bring a liar to clean water, and the appendix only bothers us.
Fingerprints are unique
It is generally accepted that the fingerprints of one person cannot be confused with the prints of another. In fact, there is no evidence of the uniqueness of the prints: there are no studies that would confirm this fact, and for many years it was accepted simply as an axiom. But fingerprinting itself does not claim that there can be no coincidence: it is believed that the probability is 1 to 64 billion. And since more than 100 billion people have lived on the planet throughout history, the likelihood that your drawing at your fingertips coincides with someone else’s it’s still there.
Lie detector is able to determine the truth
The belief that a polygraph can determine with 100% probability whether a person is telling the truth or lying is based on the assertion that a lie causes certain physiological reactions of the body, for example, excessive sweating. However, this in itself is a deception, since a lie does not affect the “subconscious” behavior of a person. Therefore, modern scientists attribute the printing industry to typical “representatives” of pseudoscience.
In 2003, a study report was published, the authors of which concluded that most of the polygraph tests were unscientific and biased, and the test results were no different from random guessing.
The number of fat cells is a constant value
This is not so at the same time. The formation of fat cells in humans occurs during fetal development and during puberty. However, if a person begins to gain excess weight and the existing cells can’t cope with the amount of “newly arrived” fat, they signal the body about the need to create new ones. So, in an adult thin and in an adult full person, their number can vary by 4 times.
However, the appeared fat cells do not disappear anywhere and remain with the person for the rest of their lives. If he again returns to his normal weight, they simply decrease in size, and vice versa.