The brain uses over
a quarter of the
oxygen used by the
human body. More
human brain facts.
Your heart beats
around 100000
times a day,
36500000 times a
year and over a
billion times if you
live beyond 30. More
human heart facts.
Red blood cells carry
oxygen around the
body. They are
created inside the
bone marrow of
your bones. More
blood facts.
The colour of a
humans skin is
determined by the
level of pigment
melanin that the
body produces.
Those with small
amounts of melanin
have light skin while
those with large
amounts have dark
skin. More skin facts.
Adult lungs have a
surface area of
around 70 square
metres! More lung
facts.
Humans have a
stage of sleep that
features rapid eye
movement (REM).
REM sleep makes up
around 25% of total
sleep time and is
often when you
have your most vivid
dreams. More eye
facts.
Most adults have 32
teeth. More teeth
facts.
The smallest bone
found in the human
body is located in
the middle ear. The
stapes (or stirrup)
bone is only 2.8
millimetres long.
More ear facts.
Your nose and ears
continue growing
throughout your
entire life. More
nose facts.
Infants blink only
once or twice a
minute while adults
average around 10.
As well as having
unique fingerprints,
humans also have
unique tongue
prints.
The left side of your
body is controlled by
the right side of
your brain while the
right side of your
body is controlled by
the left side of your
brain.
Antibiotics are only
effective against
bacteria, they won't
help in fighting off a
virus.
It takes the body
around 12 hours to
completely digest
eaten food.
Your sense of smell
is around 10000
times more sensitive
than your sense of
taste. More senses
facts.