HUMAN BRAIN FACTS

BRAIN SURGERY IS NOT SOMETHING NEW.

IN THE PAST SOME CULTURES PRACTICED TREPANATION,

OR THE ACT OF DRILLING HOLES IN THE BRAIN TO

ALLEVIATE PAIN AND CURE SICKNESS

WILDER PENFIELD (1891-1976) CREATED A DRAWING

THAT BECAME KNOWN AS A HOMUNCULUS, WHICH SHOWS

WHAT WE WOULD LOOK LIKE IF OUR BODY PARTS WERE

AS BIG AS THE BRAIN SPACE THEY TAKE UP

THERE ARE MORE THAN 100,000 CHEMICAL REACTIONS

HAPPENING IN YOUR BRAIN EVERY SECOND

HUMANS HAVE MORE BRAIN CELLS AT THE AGE OF TWO

THAN AT ANY OTHER POINT IN THEIR LIVES

A WOMAN'S BRAIN SHRINKS DURING PREGNANCY AND

TAKES UP TO 6 MONTHS TO REGAIN ITS SIZE

EXPERTS ESTIMATE THAT OVER THE COURSE OF A

LIFETIME HUMAN BRAINS OF THE 21ST CENTURY WILL

RETAIN UP TO 1 QUADRILLION PIECES OF INFORMATION

ANCIENT PEOPLE THOUGHT THE STOMACH AND HEART

TO BE MORE IMPORTANT THAN THE BRAIN. EGYPTIANS

EVEN PULLED PARTS OF THE BRAIN OUT THROUGH THE

NOSE BEFORE MUMMIFYING BODIES

CONTRARY TO POPULAR BELIEF, YOU DON'T ONLY USE

10% OF YOUR BRAIN. MOST OF YOUR BRAIN IS ACTIVE

ALL THE TIME, EVEN WHEN YOU SLEEP