The length from your wrist to your elbow is the same as the length of your foot.
Your heart beats 101,000 times a day. During your lifetime it will beat about 3 billion times and pump about 400 million litres (800 million pints) of blood.
It is impossible to lick your elbow. Well, for almost everyone… but a few can.
Your mouth produces 1 litre (1.8 pints) of saliva a day.
The human head contains 22 bones. More on the head and brains
Your heart beats 101,000 times a day. During your lifetime it will beat about 3 billion times and pump about 400 million litres (800 million pints) of blood.
It is impossible to lick your elbow. Well, for almost everyone… but a few can.
Your mouth produces 1 litre (1.8 pints) of saliva a day.
The human head contains 22 bones. More on the head and brains
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