Your body – fun facts

Below are some interesting facts about your body.

• Identical twins have identical DNA profiles, because they develop from a single fertilized egg that splits into two.

• Your DNA has 23 pairs of chromosomes, one set inherited from your father, the other from your mother.

• There are 20 times more bacteria than cells in your body.

• Sweat is a natural air conditioning to cool you down. The sweat doesn't smell — it's the bacteria munching on it that smell!

• The human heart beats about 40 million times a year.

• Bad breath is caused by millions of tiny critters called bacteria which live, eat, reproduce, poo and die in your mouth.