amazing human facts. by me.

I just found out about them today. and i thought of sharing them with you.

• There are about 60000 miles of blood vessels in the human body.
• an average human is made of 7 000 000 000 000 000 000 000 000 000 atoms.
• the biggest molecule in nature.chromosome , is in the human body- it contains 10 billion atoms.
• You use about 200 muscles to take a single step.
• The acid in the stomach is strong enough to dissolve razorblades.
• 80% of the brain is water.