Facts about human body.

  1. A mans testicles manufacture 10 million new sperm cells each day – enough that he could repopulate the entire planet in only 6 months.
  2. 50,000 of the cells in your body will die and be replaced with new cells, all while you have been reading this sentence.
  3. In one hour, your heart works hard enough to produce the equivalent energy to raise almost 1 ton of weight 1 yard off the ground.
  4. You use 200 muscles to take one step;You use an average of 43 muscles for a frown; You use an average of 17 muscles for a smile.
  5. When you sleep, you grow by about 8mm (0.3in). The next day you shrink back to your former height. The reason is that your cartilage discs are squeezed like sponges by the force of gravity when you stand or sit.
  6. The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
  7. You burn 26 calories in a one minute kiss.
  8. Your brain operates on the same amount of power that would light a 10-watt light bulb.
  9. Approximately 75% of human body is made of water.
  10. Your eyes are always the same size from birth but your nose and ears never stop growing.
  11. The average human dream lasts 2-3 seconds.
  12. You Can Still Have An Erection After Death. It happens when individual dies vertically or face-downside.
  13. Your brain is more active during the night than the day.
  14. The tooth is the only part of the human body that can’t repair itself.
  15. The tongue is the strongest mucle in the body.
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