1. Unique!

2. Did you know? It takes 43 muscles to frown . . .
. . . but it only takes 17 muscles to smile (so smile!).
On average, we blink around 25 times per minute.
Your left lung is smaller than your right lung so that it can fit in with your heart.
Around 50,000 cells will have died and been replaced by the time I finish this sentence.
In a square of skin measuring 2.5 cm2, you have 1,300 nerve cells, 3 million normal cells and 100 sweat glands.

3. The average body has enough . . .
Sulphur to kill all the fleas on an average dog.
Carbon to make 900 pencils.
Potassium to fire a toy cannon.
Fat to make seven bars of soap.
Phosphorus to make 2,200 match heads.

4. Did you know? We burn 26 calories in a one-minute kiss!
Every person has a unique fingerprint.
Every person has a unique tongue print.