Here are some crazy facts about the human body that I found on the web:
- The largest bone in the human body is the femur. It can support 30 times the weight of a person’s body. Ounce for ounce, that’s stronger than steel.
- Messages from the human brain travel along nerves at up to 200 miles an hour (322 km/h).
- In an adult human, 25% of their bones are in the feet.
- The brain will protect itself even if it means misery to you or death. For example, it will make you stop breathing and pass out if you inhale smoke in the middle of a burning house.
- The lining in a person’s stomach is replaced every 4 to 5 days to prevent it from digesting itself.
- An adult human’s small intestine is about 18 to 23 feet long, which is about four times as long as an adult is tall.
- A person’s feet has about 500,000 sweat glands and can produce about a pint of sweat a day.
- A human sneeze can travel about 100 mph or more.
- There are more bacteria in a human mouth than there are people in the world.
- A human’s little finger contributes over 50% of the hand’s strength.
- A human skeleton renews itself completely every 10 years.
- The same skin cells that make up a human vagina are the same type of cells that are in a human mouth.
- By the time a person reaches 70 years old, he or she will have consumed over 12,000 gallons of water.
- The body can detect taste in .0015 seconds, which is faster than the blink of an eye.
- Every hour, humans shed about 600,000 particles of skin, or about 1.5 pounds every year. By the time a person is 70 years old, they will have lost about 105 pounds of skin.
- The largest cell in the human body is an egg (or ovum) and is barely visible to the naked eye.
- Taste buds are not visible to the naked eye; the little bumps that can be seen on the tongue are actually papillae, on top of which rest the taste buds.
- There are ten times more bacteria cells in your body than human cells.
- The brain contains 86 billion nerve cells joined by 100 trillion connections. This is more than the number of stars in the Milky Way.
- Like fingerprints, each human tongue has its own unique print.
- Two percent of the human population has a bifid uvula, which means it has a forked appearance.
- Rhinotillexomania is the excessive habit of picking one’s nose.
- Semen normally contains 1-8 billion sperm per fluid ounces (140-300 million sperm per millimeter).
- If a human being’s DNA were uncoiled, it would stretch 10 billion miles, from Earth to Pluto and back.
- Within three days of dying, the enzymes that digested a person’s food will begin to digest that person’s body.
- For an adult human, taking just one step uses up to 200 muscles.
- Bone is five times stronger than a steel bar of the same width, but it is brittle and can fracture on impact.
- The gluteus maximus is the body’s largest muscle.
- A human’s ears and nose never stop growing.
- It would take someone typing 60 words per minute, eight hours a day, around 50 years to type the human genome.
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