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冷知识之人体篇
Human Quick Facts
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2008-05-29 17:03:53
CRIENGLISH.com
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1. There are 60,000 miles of blood vessels in the human body.
2. It takes about 60 seconds for a human blood cell to make a complete circuit of the body.
3. The average person will shed 40 pounds of skin in his/her lifetime.
4. Humans share 98.4% of our DNA with chimps. In comparison, we share 70% of our DNA with a slug.
5. The human brain uses 20% of the body’s energy but is only 2% of the body’s weight.
6. On average, humans lose 40-100 strands of hair per day.
7. A sneeze can exceed the speed of 100mph. A cough can reach the speed of 60mph.
8. The average person will drink about 16,000 gallons of water in his/her lifetime.
大约72吨，十多卡车
9. It takes 17 muscles to smile while taking 43 muscles to frown.
10. There are approximately 550 hairs in a person’s eyebrow.
11. The strongest muscle in the human body is the tongue.
12. The number of eye blinks varies greatly from about 29 blinks each minute if you are talking to someone to only 4 blinks each minute if you are reading. The average human blinks 25 times per minute.
13. A nail takes around 6 months to grow from base to the tip.
14. Each second 10,000,000 cells die and are replaced in your body.
15. Your right lung takes in more air than your left one does.
16. The tooth is the only part of the human body that can’t repair itself.
17. One human hair can support 3kg.
18. The average person flexes the joints in their fingers 24 million times during a lifetime.
19. On average, we breathe between 12 and 18 times a minute.
20. The average guy will grow about 27 feet of hair out of his face during his lifetime.
21. An average person laughs about 15 times a day.
22. A human heart beats 100,000 times a day.
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