Interesting Facts about the Human Body
- Scientists say the higher your I.Q. The more you dream.
- The largest cell in the human body is the female egg and the smallest is the male sperm.
- You use 200 muscles to take one step.
- Your big toes have two bones each while the rest have three.
- A pair of human feet contains 250,000 sweat glands.
- A full bladder is roughly the size of a soft ball.
- The acid in your stomach is strong enough to dissolve razor blades.
- The human brain cell can hold 5 times as much information as the Encyclopedia Britannica.
- It takes the food seven seconds to get from your mouth to your stomach.
- The average human dream lasts 2-3 seconds.
- Men without hair on their chests are more likely to get cirrhosis of the liver than men with hair.
- At the moment of conception, you spent about half an hour as a single cell.
- There are about one trillion bacteria on each of your feet.
- Your body gives off enough heat in 30 minutes to bring half a gallon of water to a boil.
- The enamel in your teeth is the hardest substance in your body.
- Your teeth start growing 6 months before you are born.
- When you are looking at someone you love, your pupils dilate, and they do the same when you are looking at someone you hate.
- Your thumb is the same length of your nose.
- As humans grow older, the lens in the eye grows thicker. This is why people who once had perfect vision often need glasses in their 40s.
- The circulatory system of arteries, veins, and capillaries is about 60,000 miles long.
- Every day the average person loses 60-100 strands of hair.
- One human hair can support 3.5 ounces. That’s about the weight of two full size candy bars.
- The surface area of a human lung is equal to a tennis court.
- On any given day, sexual intercourse takes place 120 million times on earth.
- One out of every 2,000 newborn infants has a tooth when they are born.
- Most men have erections every hour to hour and a half during sleep.
- After eating too much, your hearing is less sharp.
- Even small noises cause the pupils of the eyes to dilate.
- Everyone has a unique smell, except for identical twins.
- By the age of 60, most people will have lost about half their taste buds.
- Humans can make do longer without food than sleep.
- A human head remains conscious for about 15 to 20 seconds after it is been decapitated.
- The tooth is the only part of the human body that can’t repair itself.
- Three hundred million cells die in the human body every minute.
- Humans shed about 600,000 particles of skin every hour.
- Human lips have a reddish color because of the great concentration of tiny capillaries just below the skin.
- The colder the room you sleep in, the better the chances are that you’ll have a bad dream.
- Your ears secrete more earwax when you are afraid than when you aren’t.
- Humans are the only animals to produce emotional tears.
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