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The human body is an incredibly complex (and fascinating) system. There is much to learn and discover about how it works and what it can do. Here are 40 interesting facts that are sure to amaze you.
Amazing Facts About the Human Body
- 1. The average adult has about 5.6 liters of blood in their body.
- 2. Your stomach produces a new layer of mucus every two weeks so that it doesn’t digest itself.
- 3. The average humans shed about 600,000 particles of skin every hour.
- 4. The average person will take 23,000 breaths in one day.
- 5. Your body has 300 bones at birth, but only 206 bones when fully grown.
- 6. The average human body temperature is 98.6°F (37°C).
- 7. The longest muscle in the body is the sartorius muscle in the thigh.
- 8. The average human head weighs about 8 pounds.
- 9. The average person has about 100,000 hairs on their head.
- 10. You blink about 8,000,000 times in a year.
- 11. Your brain uses 20% of the oxygen that enters your bloodstream.
- 12. Your heart beats about 115,000 times per day and pumps about 2,000 gallons of blood.
- 13. Your lungs air capacity is about 8 liters.
- 14. The acid in your stomach is strong enough to dissolve a nail.
- 15. Your intestines are almost 25 feet long.
- 16. It takes food between 24-72 hours to fully digest.
- 17. Your body is composed of about 60% water.
- 18. Your eyes have more than 1 million working parts.
- 19. Your ear can detect sound vibrations up to 20,000 times per second.
- 20. Your nose can distinguish up to 10,000 different smells.
- 21. Human bones are five times stronger than steel.
- 22. Your body can generate heat up to a temperature of 107°F.
- 23. The heart pumps about 2 gallons of blood per minute.
- 24. Your body has about 4,000 different enzymes.
- 25. The average person loses about 1 liter of water per day through sweating.
- 26. Your skin is the largest organ of the body, with a weight of about 6 to 8 pounds.
- 27. The surface area of the lungs is approximately equivalent to that of a tennis court.
- 28. Your body can detect various tastes, including salt, sour, bitter and sweet.
- 29. The heart produces enough pressure to squirt blood 30 feet.
- 30. The human brain has about 86 billion neurons (nerve cells).
- 31. The cornea is the only part of the human body that has no blood supply.
- 32. The human body uses about 288 dietary ingredients to build itself.
- 33. There are about 8 million sweat glands in the human body.
- 34. Your eyes contain more than 2 million working parts.
- 35. Your eyes can distinguish about 10 million different colors.
- 36. The human liver has about 500 functions.
- 37. Your body contains enough iron to make a nail 3 inches long.
- 38. Humans shed about 7 million skin cells per day.
- 39. Your body produces enough heat in 30 minutes to bring a half-gallon of water to boil.
- 40. Your body will replace itself entirely every 7 years.
Whether you’re amazed or merely intrigued, it’s clear that the human body is an incredible machine with many amazing facts to learn. Use these facts to get inspired and deepen your appreciation of the complexity of the human body.
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