Even today, when any information on human anatomy and medicine is available to almost everyone, we continue to be mistaken and believe all sorts of “myths” and outright lies about how our body functions. You may have heard that a person uses only 10% of his brain (in some versions - 2%); nails and hair continue to grow even after death; You can’t read in the dark - it damages your eyesight; in a draft you will definitely catch a cold; a dog's mouth is cleaner than a person's mouth. We studied these and similar statements with all possible humor and received comprehensive and very informative comments from doctors and biologists. In this book you will find scientifically based facts that people, as a rule, do not know about and therefore make a lot of incredible and often funny assumptions, which for some reason they themselves begin to believe and convince others.