Top Five Amazing Facts About The Human Body-(Part 6):

01:Bones are 4 times stronger than concrete.

02:An adult skin weighs around 3 to 4 Kgs.

03:Food spends up to 6 hours in the stomach being digested.

04:On a genetic level, all human beings are more than 99 percent identical.

05:The only part of the body that has no blood supply is the cornea of the eye. It receives oxygen directly from the air.

Bonus Fact: A person who smokes a pack of cigarettes a day is doing the equivalent of drinking half a cup of tar a year.