Blood is about 78 percent water. See more

The heart beats about 100,000 times each day. See more

Your system of blood vessels is over 60,000 miles long. That's long enough to go around the world more than twice! See more

Most dust particles in a US house are made from dead skin. See more

If you fart constantly for 6 years and 9 months, enough gas is produced to create the energy of an atomic bomb. See more

Leonardo Da Vinci invented the scissors. See more

The average person falls asleep in seven minutes. See more

Mexico City sinks about 10 inches a year. See more

All the chemicals in the human body have a combined value of approximately £4.00. See more