Did you know?

  1. The brain uses about 20 per cent of the oxygen used by the human body.
  2. Your heart beats over 100,000 times per day.
  3. Adult lungs have a surface area between 540 and 810 square feet.
  4. REM sleep makes up about 20 per cent of total sleep time and is often when you have your most vivid dreams.
  5. Infants blink only once or twice a minute, while adults average around 10.
  6. Similar to fingerprints, humans also have unique tongue prints.
  7. Antibiotics are only effective against bacteria, not viruses.
  8. It takes your body around 12 hours to completely digest food.
  9. Bacteria are extremely small and are made up of just one cell.
  10. In terms of DNA sequences, all humans are over 99 per cent similar to other humans.