Did you know that there are 45 miles of nerves in the human skin? That bones are stronger than steel? Or that the gastric acid in the stomach is so powerful that it can dissolve an iron table in 5 minutes? Here are some amazing facts about the complex human body.
- It takes 6 months to grow a fingernail from base to tip, and the fastest growing nail is on the middle finger, while the lifespan of a human hair is 3 to 7 years on average.
- A cough releases an explosive charge of air that moves at speeds up to 95 km per hour (60 mph), while a sneezes regularly exceed 160 km (100 mph).
- The brain operates on the same amount of power as 10-watt light bulb.
- The gastric acid in the stomach is so powerful that it dissolves an iron table in about 5 minutes, but fortunately the stomach regenerate so quickly that in a you get a new stomach lining every three to four days.
- We are about 1 cm taller in the morning than in the evening, because the cartilage between the bones gets compressed by gravitation when standing.
- The nose can remember 50,000 different scents.
- The largest cell in the human body is the female egg and the smallest is the male sperm.
- Once a person reaches the age of 35, he/she will start losing approximately 7,000 brain cells a day, which will never be replaced.
- The strongest muscle in the human body is the tongue.
- A person produces 37,854 liters (10,000 gallons) of saliva in an average lifetime.
- The skin is the largest organ of the human body, and the average person will shed 18 kg (40 pounds) of skin in his/her lifetime.
- There are 45 miles (72.4 km) of nerves in the skin of a human being.
- The human bones are stronger than steel but 50 times lighter.
- The length from your wrist to your elbow is the same as the length of your foot.
- The tooth is the only part of the human body that can't repair itself.
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المشاركة الأصلية كتبت بواسطة خالد محمد عبد الرحيم عواد
