- Fingernails grow faster than toenails.
- Hiccups usually last for 5 minutes.
- Honey enters your blood stream within 20 minutes of being eaten.
- Human begins to feel thirsty when body losses 1% of water.
- Human blood is 6 times thicker than water.
- Human brain uses 25% of all the oxygen he breathes.
- Human brain weights 2% of the body weight though uses 20% of all oxygen breathe and 15% of the body's blood supply.
- Human burn more calories sleeping than watching television.
- Human can smell a skunk 1.6km (1 mile) away.
- Human foot and forearm are the same length.
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