77 Human Body Facts
- The shark cornea has been used in eye surgery, since its cornea is similar to a human cornea.
- The number one cause of blindness in adults in the United States is diabetes.
- The eyeball of a human weighs approximately 28 grams.
- The eye of a human can distinguish 500 shades of gray.
- The cornea is the only living tissue in the human body that does not contain any blood vessels.
- The conjunctiva is a membrane that covers the human eye.
- Sailors once thought that wearing a gold earring would improve their eyesight.
- Research has indicated that a tie that is on too tight can increase the risk of glaucoma in men.
- People generally read 25% slower from a computer screen compared to paper.
- Men are able to read fine print better than women can.
- Close to fifty percent of the bacteria in the mouth lives on the surface of our tongue.
- You have approximately 9,000 - 10,000 taste buds; however, they’re not all on the tongue. Some are under the tongue; some are on the inside of the cheeks; some are on the roof of the mouth. Some can even be found on the lips; these are especially sensitive to salt.
- 85% of the population can curl their tongue into a tube.
- In a month, a fingernail grows an eighth of an inch.
- People who have a mouth with a narrow roof are more likely to snore. This is because they have less oxygen going through their nose.
- While sleeping, one man in eight snores, and one in ten grinds his teeth.
- It takes food seven seconds to go from the mouth to the stomach via the esophagus.
- In one day, a human sheds 10 billion skin flakes. This amounts to approximately 4,5 pounds in a year.
- Every square inch of the human body has about 19,000,000 skin cells.
- Every hour one billion cells in the body must be replaced.
- The small intestine in the human body is about 2 inches in diameter, and 22 feet long.
- The human body has approximately 37,000 miles of capillaries.
- The aorta, which is the largest artery located in the body, is about the diameter of a garden hose.
- The adult human body requires about 88 pounds of oxygen daily.
- An average women has about 17 square feet of skin. When a women is in her ninth month of pregnancy she has approximately 18.5 square feet of skin.
- The width of your arm span - stretched out - is the length of your whole body.
- Women hearts beat faster than men.
- Three years after a person quits smoking, their chance of having a heart attack is the same as someone who has never smoked before.
- The human heart weighs less than a pound.
- The human heart can create enough pressure that it could squirt blood a distance of thirty feet.
- The first recorded open heart surgery was performed by Dr. Daniel Hall Williams in 1893.
- Scientists have discovered that the longer the ring finger is in boys, the less chance they have of having a heart attack.
- The right lung of a human is larger than the left one. This is because of the space and placement of the heart.
- The human heart beat roughly 35 million times a year.
- In a lifetime, the heart pumps about one million barrels of blood.
- In 1967, the first successful heart transplant was performed in Cape Town, South Africa.
- People that suffer from gum disease are twice as likely to have a stroke or heart attack.
- Most heart attacks occur between the hours of 8 and 9 AM.
- The human heart beast roughly 35 million times a year.
- At one time it was thought that the heart controlled a person’s emotions.
- The smallest bone in the human body is the stapes bone which is located in the ear.
- There are 54 bones in your hands including the wrists.
- The only bone fully grown at birth is located in the ear.
- The human face is made up of 14 bones.
- If an identical twin grows up without having a certain tooth, the other twin will most likely also grow up with that tooth missing.
- Humans are born with 300 bones in their body, however when a person reaches adulthood they only have 206 bones. This occurs because many of them join together to make a single bone.
- Gardening is said to be one of the best exercises for maintaining healthy bones.
- Enamel is hardest substance in the human body.
- Although the outsides of a bone are hard, they are generally light and soft inside. They are about 75% water.
- Adult human bones account for 14% of the body’s total weight.
- 1 in 2000 babies are born with a tooth that is already visible.
- Fingernails grow nearly 4 times faster than toenails!
- The strongest bone in your body is the femur (thighbone), and it’s hollow
- In the United States women are twice as likely to be diagnosed with depression than men.
- The human brain has about 100,000,000,000 (100 billion) neurons.
- Of all the oxygen that a human breathes, twenty percent goes to the brain.
- People who ride on roller coasters have a higher chance of having a blood clot in the brain.
- Once a human reaches the age of 35, he/she will start losing approximately 7,000 brain cells a day. The cells will never be replaced.
- It is not possible to tickle yourself. The cerebellum, a part of the brain, warns the rest of the brain that you are about to tickle yourself. Since your brain knows this, it ignores the resulting sensation.
- A women from Berlin, Germany has had 3,110 gallstones taken out of her gall bladder.
- In America, the most common type of mental illness is Anxiety Disorders.
- Your brain is 80% water.
- Your brain is move active and thinks more at night than during the day.
- The smile is the most frequently used facial expression. A smile can use anywhere from 5 to 53 facial muscles.
- The slowest growing finger nail is on the thumb, and the fastest growing is the nail on the middle finger.
- The sensitivity of a woman’s middle finger is reduced during menstruation.
- The same amount of calories are burned in 6 sessions of 5 minutes each of an activity, or doing 1 session of that activity for 30 minutes.
- The pectin that is found in apples aids in lowering cholesterol levels.
- The most frequent season for suicides to occur is spring. The winter months have the lowest number of suicides.
- The majority of American models are skinnier than 98% of American women.
- The longest case of hiccups on record was by an American pig farmer, whose hiccups persisted from 1922 through 1987.
- The length of a human esophagus is 25 centimeters.
- The human liver performs over 500 functions.
- The feet have approximately 250,000 sweat glands.
- The eight most popular foods to cause food allergies are: milk, eggs, wheat, peanuts, soy, tree nuts, fish, and shellfish.
- The earliest known occurrence of a fetus yawning was at eleven weeks after conception.
- The average ear grows 0.01 inches in length every year.
Source: Concepts, Ideas, Thoughts & Bullshit which is also linked on my Blogs At BlogUpp page.
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