21 fact about the human body Bashny.Net

1. Fatigue occurs when 35-65% of the load is absolutely possible.
2. The activity of the cardiovascular system to the maximum 18 hours, minimal in 3-4- hours.
3. Biological quality offspring increase from the 1st to the 4th child, and then falls.
4. In normal breathing person inhales 500 cubic centimeters, when you play a wind instrument - 3500.
5. The surface of the light - about 100 square meters.
6. The right lung human accommodates more air than the left.
7. An adult makes about 23,000 breaths (in and out) on the day.
8. The composition of the plasma resembles a prehistoric pramorey composition of the water in which life began.
9. For one reducing heart pumps 200 ml. Blood.
10. The total circulation of the blood of an adult is completed in 20-28 seconds, a child - for 15sekund, a teenager - and 18 seconds. During the day, the blood turns to the body 1, 5-2 thousands of times.
11. In one cubic millimeter of skin - 40 capillaries in the muscles - 2500 capillaries in the heart muscle - 4000 capillaries.
12. The strongest muscle in the human body - the language, not the heart. Heart - the muscle endurance.
13. The total length of the hair on the head to grow by an average person in their lifetime - 725 kilometers.
14. fingernails hands grow about 4 times faster than on foot.
15. During the night person produces so much heat that it will be enough to bring to boil 33 liters of ice water.
16. sneeze with your eyes open is impossible.
17. The man who smokes a pack of cigarettes a day, drink half a cup of tar per year.
18. Each person finger bent during the lifetime of about 25 million times.
19. Women blink approximately 2 times more often than men.
20. hardness of tooth enamel can be compared with quartz. It is well known that even the point of sword upon impact of enamel blunts.
21. At the 1 square centimeter of skin is 100 pain points, and their entire surface about a million.