You’re a chemical factory

Have a burning desire? Perhaps that's because your body contains enough phosphorous to make 2 000 match heads.

Mining other bits of mineral information from the book "Amazing Facts About Your Body," published by Doubleday and Co.:

• The human body contains enough carbon to make 900 lead pencils;
• enough iron to make a 3-inch-long nail.
• enough sulphur to kill all the fleas on a dog;
• enough lime to whitewash a small chicken coop,
• and enough potassium to explode a toy cannon.

(Source: Amazing Facts About Your Body)