astounding facts about the human body

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Astounding Facts about the human body

11. Long arteries
If your arteries, veins and capillaries were laid out end to end they would measure 100,000 km. Thats nearly enough to stretch two and a half times around the planet!
12. Growing hair
Your hair grows about 6mm every four weeks and keeps on growing for up to six years. The hair then falls out and another grows in its place.
13. Tasty truth
Your mouth contains around 10,000 taste buds, most of which are located on and around the tiny bumps on your tongue. But you need the sense of smell to taste too.
14. Amazing memory
Smell is the oldest of all the senses - before sight, hearing or touch, creatures evolved to respond to chemicals around them. Your brain can remember over 50,000 different scents.
15. Ageing brain
The human brain is the most sophisticated thing in the known universe. Humans have more brain cells at the age of two than at any other point in their lives but it will take nearly 20 years for the brain to mature.
16. Astounding Facts 23
?Our blood is on a 60,000 mile journey per day.
17. Astounding Facts 24
Our eyes can distinguish up to ten million colour surfaces and take in more information than the largest telescope known to man.
18. Astounding Facts 22
?Our heart beats around 100,00 times every day or about 30 million times in a year.
19. Astounding Facts 21
?A sneeze generates a wind of 166 km/hr (100 mi/hr), and a cough moves out at 100 km/hr (60 mi/hr).
20. Astounding Facts 20
?Nerve Impulses travel at over 400 km/hr (249 mi/hr).

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