- you can't tickle yourself
- you can't trademark surnames
- you have fewer muscles than a caterpillar
- you have over 600 muscles
- you have to eat 5kg (11lb) of potatoes to put on .5kg (1lb) of weight (a potato has no more calories than an apple)
- you shed a complete layer of skin every 4 weeks
- you take over 23,000 breaths everyday
- you use 72 different muscles while speaking
- your blood is 6 times thicker than water
- your brain uses between 20 - 25% of the oxygen your breathe
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