Human Body

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* There are about one trillion bacteria on each of your feet. 

* Side by side, 2000 cells from the human body could cover about one square inch. 

* Women blink twice as much as men. 

* The average person’s skin weighs twice as much as their brain.

* When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate. 

* It takes twice as long to lose new muscle if you stop working out than it did to gain it. 

* You’re ears secrete more earwax when you are afraid than when you aren’t. 

* Your body uses 300 muscles to balance itself when you are standing still. 

* If saliva cannot dissolve something, you cannot taste it. 

* The average woman is 5 inches shorter than the average man.

* A full bladder is roughly the size of a soft ball. 

* Approximately 75% of human feces is made of water. 

* It takes the food seven seconds to get from your mouth to your stomach. 

* One human hair can support 3kg. 

* Human thighbones are stronger than concrete. 

* The attachment of human muscles to skin is what causes dimples. 

* Your thumb is the same length of your nose. 

* A woman’s heart beats faster than a man’s. 

* If the average male never shaved, his beard would be 13 feet long when he died. 

* Men without hair on their chests are more likely to get cirrhosis of the liver than men with hair. 

* Men loose about 40 hairs a day. Women loose about 70 hairs a day. 

* The length from your wrist to your elbow is the same as the length of your foot. 

* Your heart beats 101,000 times a day. During your lifetime it will beat about 3 billion times and pump about 400 million litres (800 million pints) of blood. 

* Your mouth produces 1 litre (1.8 pints) of saliva a day. 

* On average, people can hold their breath for one minute. The world record is seven-and-a-half minutes. 

* The human head contains 22 bones. More on the head and brains 

* On average, you breathe 23,000 times a day. 

* On average, you speak almost 5,000 words a day - although almost 80% of speaking is self-talk (talking to yourself). 

* Einstein’s brain was of average size (1375 grams - 49oz). 

* Over the last 150 years the average height of people in industrialised nations increased by 10 cm (4 in). 

* In the 19th century, American men were the tallest in the world, averaging 1,71m (5′6″). Today, the average height for American men is 1,75m (5′7″), compared to 1,77m (5′8″) for Swedes, and 1,78m (5′8.5″) for the Dutch. 

* If the amount of water in your body is reduced by just 1%, you’ll feel thirsty. 

* A person can live without food for about a month, but only about a week without water. 

* You’ll drink about 75,000 litres (20,000 gallons) of water in your lifetime. 

* After a certain period of growth, hair becomes dormant. That means that it is attached to the hair follicle until replaced by new hair. 

* Hair on the head grows for between two and six years before being replaced. In the case of baldness, the dormant hair was not replaced with new hair.

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