– Adult human body consists of about 20,000 billion cells. The cell, despite its small size (a few thousandths to a few hundredths of a millimeter) is extremely complex. Estimated that the number of the contained chemical substances may exceed hundreds of thousands.
– The cortex of the human brain has 17 billion nerve cells.
– The human body contains so much of phosphorus that from it might be produce thousands of matches.
– Hair has great resistance, not only at the gap, but also to shrinkage. If its glued to a sheet of steel, and then drive for a while this sheet, it will be mark of hair on the steel.
– With each breath a person introduces into the lungs a pint of air, and within an hour – 1080 pints, or slightly more than half a cubic meter. During the day a person inhales 14 kgs of air, of which 4/5 is useless for breathing Nitrogen, and only 1/5 – about 3 kg – is necessary for the life Oxygen.
– Sobs and laugh has much in common. Physiologically, both is alternation of deep breaths which accompanied by vibration of the vocal cords. Of all the living creatures people and mouse only can laugh.
– A man makes a day at about 20 000 steps, during the year – up to 7 million, and over 70 years – nearly 500 million steps. This means that people for their lives would 9 times work around the globe at the equator, or overcome the distance from Earth to the Moon.
– In Sudan city Port Sudan work an amazing theater. In its program, there is no touching dramas or funny comedies, there go plays where the main characters are seven terrible diseases: typhoid fever, tuberculosis, smallpox, and others. The actors, representing these diseases have a terrifying make up and dressed in terrible clothes. The audience during the performance learn how dangerous these diseases are, and most importantly – how to protect oneself from them. All performances gather a full hall, the audience catch every word attentively. The theater was arranged specifically for the refugees who have settled in tents around Port Sudan. The overwhelming majority of them can neither write nor read, so that the most effective way to distribute medical knowledge among them – “Theatre of hygiene”. The actors of which play instructive plays on the themes of struggle with the disastrous diseases and epidemics.