Astronauts cannot burp. This is because there is no
gravity to separate liquid from gas in their stomach.
Mothers day is the third most popular holiday in the
world, second only to Christmas and easter.
Adult lungs have a
surface area of area of around 70 square meters.
As well as having unique fingerprints,
humans also have unique tongue prints.
The human brain uses up
about 20% of the body’s entire oxygen and calories.
Apart from identical twins every single person on earth has
unique smell.
You are about 1cm shorter
at night because the cartilage between your bones is compressed throughout the
day.
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