How much information the brain can hold? 

Experts say there is no exact answer to this question.

 "It is impossible to compare the human brain to a machine, because the amount of information we hold can not be quantified

. Who is lying about numbers," says neurologist Ivan Izquierdo, of the Federal University of Rio Grande do Sul (UFRGS).
Throughout evolution, the human brain increased in size and improved its functions, but the ability to store and recall facts is a puzzle not fully unraveled by science.
 And this mystery comes from afar.
 In the 4th century BC, the Greek philosopher Plato likened memory to a scratched blade, which had the impression to be erased by the ravages of time,

  Aristotle thought that was the heart of who controlled the memories.
Today, it is known that the brain is who retains information and divides them into two main types of memory.

The first, short-term stores only six or seven items -
 like names or phone numbers - for a very short time, sometimes for seconds.
 The second, long-term, remains outstanding issues or data that must always remember.
 "We remember something more easily associate a context or has emotional importance,
. In long-term memory, memories that can be described in words - as the application of a chief or the address of his girlfriend - are stored in explicit memory.

 Elsewhere, the implied, is responsible for automatic tasks like reading, writing or passing gears the car without thinking first.
 The memory seems an infallible skill, but the fact is that when we remember something never reconstructed the scene faithfully.

"The brain retains only fragments of what happened and the time to assemble the puzzle of memories, emotions and tell how the person perceived the fact. Whoever has the computer's memory.
 What we have is a vague memory, "