facts about human body

The average person has about 100,000 hairs on their head.
The human nose can detect over 1 trillion different scents.
The human eye can distinguish over 10 million different colors.
The surface area of the human lungs is about the same size as a tennis court.
The human brain is the most complex organ in the body and contains over 100 billion nerve cells (neurons).
The human body contains enough fat to make seven bars of soap.
The human body has enough bone to make about nine white pencils.
The human body has enough water to fill a gallon jug.
The human body has enough carbon to make about 900 pencils.
The human body has enough phosphorus to make about 2,200 match heads.